131311562155 has 4 divisors (see below), whose sum is σ = 157573874592. Its totient is φ = 105049249720.

The previous prime is 131311562111. The next prime is 131311562191. The reversal of 131311562155 is 551265113131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 131311562155 - 2²⁵ = 131278007723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131311562155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13131156211 + ... + 13131156220.

It is an arithmetic number, because the mean of its divisors is an integer number (39393468648).

Almost surely, 2^131311562155 is an apocalyptic number.

131311562155 is a deficient number, since it is larger than the sum of its proper divisors (26262312437).

131311562155 is an equidigital number, since it uses as much as digits as its factorization.

131311562155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26262312436.

The product of its digits is 13500, while the sum is 34.

Adding to 131311562155 its reverse (551265113131), we get a palindrome (682576675286).

The spelling of 131311562155 in words is "one hundred thirty-one billion, three hundred eleven million, five hundred sixty-two thousand, one hundred fifty-five".