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131212330030331 = 1147711433567401
BaseRepresentation
bin11101110101011001000000…
…010100100101010011111011
3122012120202221212211211121022
4131311121000110211103323
5114144240322441432311
61143022040125533055
736431530600014014
oct3565310024452373
9565522855754538
10131212330030331
1138898922670630
12128719b3a1418b
13582a3674b8214
1424589d409400b
1510282019965db
hex7756405254fb

131212330030331 has 16 divisors (see below), whose sum is σ = 146188366783488. Its totient is φ = 116744306568000.

The previous prime is 131212330030319. The next prime is 131212330030343. The reversal of 131212330030331 is 133030033212131.

It is an interprime number because it is at equal distance from previous prime (131212330030319) and next prime (131212330030343).

It is a cyclic number.

It is not a de Polignac number, because 131212330030331 - 26 = 131212330030267 is a prime.

It is a super-2 number, since 2×1312123300303312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131212330030331.

It is not an unprimeable number, because it can be changed into a prime (131212338030331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34997231 + ... + 38564631.

It is an arithmetic number, because the mean of its divisors is an integer number (9136772923968).

Almost surely, 2131212330030331 is an apocalyptic number.

131212330030331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131212330030331 is a deficient number, since it is larger than the sum of its proper divisors (14976036753157).

131212330030331 is a wasteful number, since it uses less digits than its factorization.

131212330030331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638602.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 131212330030331 its reverse (133030033212131), we get a palindrome (264242363242462).

The spelling of 131212330030331 in words is "one hundred thirty-one trillion, two hundred twelve billion, three hundred thirty million, thirty thousand, three hundred thirty-one".

Divisors: 1 11 47 517 71143 782573 3343721 3567401 36780931 39241411 167667847 1844346317 253795609343 2791751702773 11928393639121 131212330030331