13165401023431 has 2 divisors, whose sum is σ = 13165401023432. Its totient is φ = 13165401023430.

The previous prime is 13165401023399. The next prime is 13165401023477. The reversal of 13165401023431 is 13432010456131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13165401023431 - 2⁵ = 13165401023399 is a prime.

It is a super-2 number, since 2×13165401023431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13165405023431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6582700511715 + 6582700511716.

It is an arithmetic number, because the mean of its divisors is an integer number (6582700511716).

Almost surely, 2^{13165401023431} is an apocalyptic number.

13165401023431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13165401023431 is an equidigital number, since it uses as much as digits as its factorization.

13165401023431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 13165401023431 its reverse (13432010456131), we get a palindrome (26597411479562).

The spelling of 13165401023431 in words is "thirteen trillion, one hundred sixty-five billion, four hundred one million, twenty-three thousand, four hundred thirty-one".