23131222111204 has 24 divisors (see below), whose sum is σ = 41356470962520. Its totient is φ = 11317766946816.

The previous prime is 23131222111199. The next prime is 23131222111289. The reversal of 23131222111204 is 40211122213132.

It can be written as a sum of positive squares in 4 ways, for example, as 437050565604 + 22694171545600 = 661098^2 + 4763840^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334889917 + ... + 334958980.

It is an arithmetic number, because the mean of its divisors is an integer number (1723186290105).

Almost surely, 2^{23131222111204} is an apocalyptic number.

It is an amenable number.

23131222111204 is a deficient number, since it is larger than the sum of its proper divisors (18225248851316).

23131222111204 is a wasteful number, since it uses less digits than its factorization.

23131222111204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669849087 (or 669849085 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 23131222111204 its reverse (40211122213132), we get a palindrome (63342344324336).

The spelling of 23131222111204 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred twenty-two million, one hundred eleven thousand, two hundred four".