131013040402 has 8 divisors (see below), whose sum is σ = 196527376512. Its totient is φ = 65503914900.

The previous prime is 131013040393. The next prime is 131013040469. The reversal of 131013040402 is 204040310131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 131013040402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239174 + ... + 1340737.

It is an arithmetic number, because the mean of its divisors is an integer number (24565922064).

Almost surely, 2^131013040402 is an apocalyptic number.

131013040402 is a deficient number, since it is larger than the sum of its proper divisors (65514336110).

131013040402 is a wasteful number, since it uses less digits than its factorization.

131013040402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605304.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 131013040402 its reverse (204040310131), we get a palindrome (335053350533).

It can be divided in two parts, 13101 and 3040402, that added together give a palindrome (3053503).

The spelling of 131013040402 in words is "one hundred thirty-one billion, thirteen million, forty thousand, four hundred two".