122133131231 has 16 divisors (see below), whose sum is σ = 123949329408. Its totient is φ = 120331072800.

The previous prime is 122133131221. The next prime is 122133131233. The reversal of 122133131231 is 132131331221.

It is a cyclic number.

It is not a de Polignac number, because 122133131231 - 2⁶ = 122133131167 is a prime.

It is a super-2 number, since 2×122133131231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122133131197 and 122133131206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122133131233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17771726 + ... + 17778596.

It is an arithmetic number, because the mean of its divisors is an integer number (7746833088).

Almost surely, 2^122133131231 is an apocalyptic number.

122133131231 is a deficient number, since it is larger than the sum of its proper divisors (1816198177).

122133131231 is a wasteful number, since it uses less digits than its factorization.

122133131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7862.

The product of its digits is 648, while the sum is 23.

Adding to 122133131231 its reverse (132131331221), we get a palindrome (254264462452).

The spelling of 122133131231 in words is "one hundred twenty-two billion, one hundred thirty-three million, one hundred thirty-one thousand, two hundred thirty-one".