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131103512142240 = 25351143913565441
BaseRepresentation
bin11101110011110011101010…
…010001010010000110100000
3122012012101002011210100220210
4131303303222101102012200
5114140444443102022430
61142500042204534120
736420626151146661
oct3563635221220640
9565171064710823
10131103512142240
1138856761819710
12128548a4b51340
135820014b8b721
14245362dca5368
1510254835542b0
hex773cea4521a0

131103512142240 has 192 divisors, whose sum is σ = 450530397862272. Its totient is φ = 31781889638400.

The previous prime is 131103512142227. The next prime is 131103512142293. The reversal of 131103512142240 is 42241215301131.

It is a super-2 number, since 2×1311035121422402 (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 = 131103512142198 and 131103512142207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231577920 + ... + 232143360.

It is an arithmetic number, because the mean of its divisors is an integer number (2346512488866).

Almost surely, 2131103512142240 is an apocalyptic number.

131103512142240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131103512142240 is an abundant number, since it is smaller than the sum of its proper divisors (319426885720032).

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

131103512142240 is a wasteful number, since it uses less digits than its factorization.

131103512142240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609383 (or 609375 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 131103512142240 its reverse (42241215301131), we get a palindrome (173344727443371).

The spelling of 131103512142240 in words is "one hundred thirty-one trillion, one hundred three billion, five hundred twelve million, one hundred forty-two thousand, two hundred forty".