122023312131 has 32 divisors (see below), whose sum is σ = 194545105920. Its totient is φ = 66517064064.

The previous prime is 122023312097. The next prime is 122023312183. The reversal of 122023312131 is 131213320221.

It is not a de Polignac number, because 122023312131 - 2⁷ = 122023312003 is a prime.

It is a super-2 number, since 2×122023312131² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 122023312098 and 122023312107.

It is not an unprimeable number, because it can be changed into a prime (122023312031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158496 + ... + 518813.

It is an arithmetic number, because the mean of its divisors is an integer number (6079534560).

Almost surely, 2^122023312131 is an apocalyptic number.

122023312131 is a deficient number, since it is larger than the sum of its proper divisors (72521793789).

122023312131 is a wasteful number, since it uses less digits than its factorization.

122023312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677715.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 122023312131 its reverse (131213320221), we get a palindrome (253236632352).

The spelling of 122023312131 in words is "one hundred twenty-two billion, twenty-three million, three hundred twelve thousand, one hundred thirty-one".