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12431124013 = 7111738924413
BaseRepresentation
bin10111001001111001…
…11110011000101101
31012002100100112022111
423210330332120231
5200424331432023
65413310044021
7620024545030
oct134474763055
935070315274
1012431124013
1152aa055510
1224ab1a9611
1312315828a9
1485cda5017
154cb53100d
hex2e4f3e62d

12431124013 has 32 divisors (see below), whose sum is σ = 16453082880. Its totient is φ = 9092981760.

The previous prime is 12431123989. The next prime is 12431124089. The reversal of 12431124013 is 31042113421.

It is not a de Polignac number, because 12431124013 - 225 = 12397569581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431122013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 496995 + ... + 521407.

It is an arithmetic number, because the mean of its divisors is an integer number (514158840).

Almost surely, 212431124013 is an apocalyptic number.

It is an amenable number.

12431124013 is a deficient number, since it is larger than the sum of its proper divisors (4021958867).

12431124013 is a wasteful number, since it uses less digits than its factorization.

12431124013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24837.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12431124013 its reverse (31042113421), we get a palindrome (43473237434).

The spelling of 12431124013 in words is "twelve billion, four hundred thirty-one million, one hundred twenty-four thousand, thirteen".

Divisors: 1 7 11 17 77 119 187 389 1309 2723 4279 6613 24413 29953 46291 72743 170891 268543 415021 509201 1879801 2905147 4565231 9496657 31956617 66476599 104463227 161443169 731242589 1130102183 1775874859 12431124013