23131531244213 has 32 divisors (see below), whose sum is σ = 27033309757440. Its totient is φ = 19383062535360.

The previous prime is 23131531244119. The next prime is 23131531244299. The reversal of 23131531244213 is 31244213513132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23131531244213 - 2¹² = 23131531240117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131531244113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1276635968 + ... + 1276654086.

It is an arithmetic number, because the mean of its divisors is an integer number (844790929920).

Almost surely, 2^{23131531244213} is an apocalyptic number.

It is an amenable number.

23131531244213 is a deficient number, since it is larger than the sum of its proper divisors (3901778513227).

23131531244213 is a wasteful number, since it uses less digits than its factorization.

23131531244213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36257.

The product of its digits is 51840, while the sum is 35.

Adding to 23131531244213 its reverse (31244213513132), we get a palindrome (54375744757345).

The spelling of 23131531244213 in words is "twenty-three trillion, one hundred thirty-one billion, five hundred thirty-one million, two hundred forty-four thousand, two hundred thirteen".