23213203131 has 16 divisors (see below), whose sum is σ = 31085510400. Its totient is φ = 15408228000.

The previous prime is 23213203099. The next prime is 23213203157. The reversal of 23213203131 is 13130231232.

It is not a de Polignac number, because 23213203131 - 2⁵ = 23213203099 is a prime.

It is a super-2 number, since 2×23213203131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23213203098 and 23213203107.

It is not an unprimeable number, because it can be changed into a prime (23213203631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3741570 + ... + 3747768.

It is an arithmetic number, because the mean of its divisors is an integer number (1942844400).

Almost surely, 2^23213203131 is an apocalyptic number.

23213203131 is a deficient number, since it is larger than the sum of its proper divisors (7872307269).

23213203131 is a wasteful number, since it uses less digits than its factorization.

23213203131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11426.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23213203131 its reverse (13130231232), we get a palindrome (36343434363).

The spelling of 23213203131 in words is "twenty-three billion, two hundred thirteen million, two hundred three thousand, one hundred thirty-one".