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131243141111340 = 22352395103725443
BaseRepresentation
bin11101110101110101101100…
…110011100001111000101100
3122012200201111011022220221210
4131311311230303201320230
5114200241423111030330
61143044133334154420
736434001245620356
oct3565655463417054
9565621434286853
10131243141111340
11388aa9a3723845
12128779724b2a10
135830237912abb
14245a2b81100d6
151028e068d58b0
hex775d6cce1e2c

131243141111340 has 48 divisors (see below), whose sum is σ = 383458220990208. Its totient is φ = 33476511355584.

The previous prime is 131243141111321. The next prime is 131243141111371. The reversal of 131243141111340 is 43111141342131.

It is a happy number.

It is a super-2 number, since 2×1312431411113402 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 131243141111298 and 131243141111307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47551861342 + ... + 47551864101.

It is an arithmetic number, because the mean of its divisors is an integer number (7988712937296).

Almost surely, 2131243141111340 is an apocalyptic number.

131243141111340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131243141111340 is an abundant number, since it is smaller than the sum of its proper divisors (252215079878868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131243141111340 is a wasteful number, since it uses less digits than its factorization.

131243141111340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95103725478 (or 95103725476 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

Adding to 131243141111340 its reverse (43111141342131), we get a palindrome (174354282453471).

The spelling of 131243141111340 in words is "one hundred thirty-one trillion, two hundred forty-three billion, one hundred forty-one million, one hundred eleven thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 345 460 690 1380 95103725443 190207450886 285311176329 380414901772 475518627215 570622352658 951037254430 1141244705316 1426555881645 1902074508860 2187385685189 2853111763290 4374771370378 5706223526580 6562157055567 8749542740756 10936928425945 13124314111134 21873856851890 26248628222268 32810785277835 43747713703780 65621570555670 131243141111340