23122031205 has 128 divisors (see below), whose sum is σ = 46188527616. Its totient is φ = 9617587200.

The previous prime is 23122031189. The next prime is 23122031227. The reversal of 23122031205 is 50213022132.

It is not a de Polignac number, because 23122031205 - 2⁴ = 23122031189 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 34153327 + ... + 34154003.

It is an arithmetic number, because the mean of its divisors is an integer number (360847872).

Almost surely, 2^23122031205 is an apocalyptic number.

It is an amenable number.

23122031205 is a deficient number, since it is larger than the sum of its proper divisors (23066496411).

23122031205 is a wasteful number, since it uses less digits than its factorization.

23122031205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 23122031205 its reverse (50213022132), we get a palindrome (73335053337).

The spelling of 23122031205 in words is "twenty-three billion, one hundred twenty-two million, thirty-one thousand, two hundred five".