131620343627 has 4 divisors (see below), whose sum is σ = 132049074696. Its totient is φ = 131191612560.

The previous prime is 131620343599. The next prime is 131620343713. The reversal of 131620343627 is 726343026131.

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

It is a cyclic number.

It is not a de Polignac number, because 131620343627 - 2²² = 131616149323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131620348627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214365074 + ... + 214365687.

It is an arithmetic number, because the mean of its divisors is an integer number (33012268674).

Almost surely, 2^131620343627 is an apocalyptic number.

131620343627 is a deficient number, since it is larger than the sum of its proper divisors (428731069).

131620343627 is an equidigital number, since it uses as much as digits as its factorization.

131620343627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428731068.

The product of its (nonzero) digits is 108864, while the sum is 38.

Adding to 131620343627 its reverse (726343026131), we get a palindrome (857963369758).

The spelling of 131620343627 in words is "one hundred thirty-one billion, six hundred twenty million, three hundred forty-three thousand, six hundred twenty-seven".