131022111213 has 72 divisors (see below), whose sum is σ = 230513931648. Its totient is φ = 71368532928.

The previous prime is 131022111161. The next prime is 131022111257. The reversal of 131022111213 is 312111220131.

It is not a de Polignac number, because 131022111213 - 2⁸ = 131022110957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131022111293) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2949856 + ... + 2993942.

It is an arithmetic number, because the mean of its divisors is an integer number (3201582384).

Almost surely, 2^131022111213 is an apocalyptic number.

It is an amenable number.

131022111213 is a deficient number, since it is larger than the sum of its proper divisors (99491820435).

131022111213 is a wasteful number, since it uses less digits than its factorization.

131022111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44423 (or 44413 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 131022111213 its reverse (312111220131), we get a palindrome (443133331344).

The spelling of 131022111213 in words is "one hundred thirty-one billion, twenty-two million, one hundred eleven thousand, two hundred thirteen".