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12132310313131 = 29219374746387
BaseRepresentation
bin1011000010001100011000…
…0010111110100010101011
31120221211121120021102020021
42300203012002332202223
53042233432420010011
641445301215141311
72361346650063451
oct260430602764253
946854546242207
1012132310313131
113958313979428
12143b3a6214837
136a00c210a7b8
142dd2c7c3c9d1
151608c89e1471
hexb08c60be8ab

12132310313131 has 12 divisors (see below), whose sum is σ = 12630196165912. Its totient is φ = 11653260562944.

The previous prime is 12132310313087. The next prime is 12132310313161. The reversal of 12132310313131 is 13131301323121.

It is not a de Polignac number, because 12132310313131 - 27 = 12132310313003 is a prime.

It is a super-2 number, since 2×121323103131312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12132310313096 and 12132310313105.

It is not an unprimeable number, because it can be changed into a prime (12132310313161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37210881 + ... + 37535506.

Almost surely, 212132310313131 is an apocalyptic number.

12132310313131 is a deficient number, since it is larger than the sum of its proper divisors (497885852781).

12132310313131 is an equidigital number, since it uses as much as digits as its factorization.

12132310313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74746638 (or 74746609 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 12132310313131 its reverse (13131301323121), we get a palindrome (25263611636252).

The spelling of 12132310313131 in words is "twelve trillion, one hundred thirty-two billion, three hundred ten million, three hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 29 193 841 5597 162313 74746387 2167645223 14426052691 62861711467 418355528039 12132310313131