23131313012402 has 12 divisors (see below), whose sum is σ = 40361780868750. Its totient is φ = 9913419862416.

The previous prime is 23131313012341. The next prime is 23131313012419. The reversal of 23131313012402 is 20421031313132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16529501791201 + 6601811221201 = 4065649^2 + 2569399^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118016903027 + ... + 118016903222.

Almost surely, 2^{23131313012402} is an apocalyptic number.

23131313012402 is a deficient number, since it is larger than the sum of its proper divisors (17230467856348).

23131313012402 is a wasteful number, since it uses less digits than its factorization.

23131313012402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236033806265 (or 236033806258 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 23131313012402 its reverse (20421031313132), we get a palindrome (43552344325534).

The spelling of 23131313012402 in words is "twenty-three trillion, one hundred thirty-one billion, three hundred thirteen million, twelve thousand, four hundred two".