15351440113431 has 32 divisors (see below), whose sum is σ = 22896339576000. Its totient is φ = 10165238985600.

The previous prime is 15351440113423. The next prime is 15351440113489. The reversal of 15351440113431 is 13431104415351.

It is a happy number.

15351440113431 is a `hidden beast` number, since 1 + 5 + 3 + 51 + 440 + 1 + 134 + 31 = 666.

It is not a de Polignac number, because 15351440113431 - 2³ = 15351440113423 is a prime.

It is a super-2 number, since 2×15351440113431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15351440113411) 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, 153616581 + ... + 153716481.

It is an arithmetic number, because the mean of its divisors is an integer number (715510611750).

Almost surely, 2^{15351440113431} is an apocalyptic number.

15351440113431 is a deficient number, since it is larger than the sum of its proper divisors (7544899462569).

15351440113431 is a wasteful number, since it uses less digits than its factorization.

15351440113431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138256 (or 138250 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 15351440113431 its reverse (13431104415351), we get a palindrome (28782544528782).

The spelling of 15351440113431 in words is "fifteen trillion, three hundred fifty-one billion, four hundred forty million, one hundred thirteen thousand, four hundred thirty-one".