131220022113 has 48 divisors (see below), whose sum is σ = 197678324480. Its totient is φ = 86983393536.

The previous prime is 131220022111. The next prime is 131220022133. The reversal of 131220022113 is 311220022131.

It is not a de Polignac number, because 131220022113 - 2¹ = 131220022111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131220022111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73842681 + ... + 73844457.

Almost surely, 2^131220022113 is an apocalyptic number.

It is an amenable number.

131220022113 is a deficient number, since it is larger than the sum of its proper divisors (66458302367).

131220022113 is a wasteful number, since it uses less digits than its factorization.

131220022113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 131220022113 its sum of digits (18), we get a palindrome (131220022131).

Adding to 131220022113 its reverse (311220022131), we get a palindrome (442440044244).

The spelling of 131220022113 in words is "one hundred thirty-one billion, two hundred twenty million, twenty-two thousand, one hundred thirteen".