122153555313 has 6 divisors (see below), whose sum is σ = 176444024354. Its totient is φ = 81435703536.

The previous prime is 122153555309. The next prime is 122153555333. The reversal of 122153555313 is 313555351221.

122153555313 is a `hidden beast` number, since 1 + 2 + 21 + 53 + 55 + 531 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64177102224 + 57976453089 = 253332^2 + 240783^2 .

It is not a de Polignac number, because 122153555313 - 2² = 122153555309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122153555333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6786308620 + ... + 6786308637.

Almost surely, 2^122153555313 is an apocalyptic number.

It is an amenable number.

122153555313 is a deficient number, since it is larger than the sum of its proper divisors (54290469041).

122153555313 is a wasteful number, since it uses less digits than its factorization.

122153555313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13572617263 (or 13572617260 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The spelling of 122153555313 in words is "one hundred twenty-two billion, one hundred fifty-three million, five hundred fifty-five thousand, three hundred thirteen".