131521218796 has 24 divisors (see below), whose sum is σ = 253063028736. Its totient is φ = 59311642320.

The previous prime is 131521218781. The next prime is 131521218797. The reversal of 131521218796 is 697812125131.

It is not an unprimeable number, because it can be changed into a prime (131521218797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11762596 + ... + 11773771.

It is an arithmetic number, because the mean of its divisors is an integer number (10544292864).

Almost surely, 2^131521218796 is an apocalyptic number.

It is an amenable number.

131521218796 is a deficient number, since it is larger than the sum of its proper divisors (121541809940).

131521218796 is a wasteful number, since it uses less digits than its factorization.

131521218796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23536509 (or 23536507 counting only the distinct ones).

The product of its digits is 181440, while the sum is 46.

The spelling of 131521218796 in words is "one hundred thirty-one billion, five hundred twenty-one million, two hundred eighteen thousand, seven hundred ninety-six".