13131400431611 has 32 divisors (see below), whose sum is σ = 16490669990400. Its totient is φ = 10157927904000.

The previous prime is 13131400431601. The next prime is 13131400431613. The reversal of 13131400431611 is 11613400413131.

It is a cyclic number.

It is not a de Polignac number, because 13131400431611 - 2³⁸ = 12856522524667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13131400431613) 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, 20345120 + ... + 20980626.

It is an arithmetic number, because the mean of its divisors is an integer number (515333437200).

Almost surely, 2^{13131400431611} is an apocalyptic number.

13131400431611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13131400431611 is a deficient number, since it is larger than the sum of its proper divisors (3359269558789).

13131400431611 is a wasteful number, since it uses less digits than its factorization.

13131400431611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637475.

The product of its (nonzero) digits is 2592, while the sum is 29.

Adding to 13131400431611 its reverse (11613400413131), we get a palindrome (24744800844742).

The spelling of 13131400431611 in words is "thirteen trillion, one hundred thirty-one billion, four hundred million, four hundred thirty-one thousand, six hundred eleven".