23531215364 has 12 divisors (see below), whose sum is σ = 41181344988. Its totient is φ = 11765116800.

The previous prime is 23531215349. The next prime is 23531215387. The reversal of 23531215364 is 46351213532.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11440013764 + 12091201600 = 106958^2 + 109960^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1577 + ... + 216944.

It is an arithmetic number, because the mean of its divisors is an integer number (3431778749).

Almost surely, 2^23531215364 is an apocalyptic number.

It is an amenable number.

23531215364 is a deficient number, since it is larger than the sum of its proper divisors (17650129624).

23531215364 is a wasteful number, since it uses less digits than its factorization.

23531215364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245446 (or 245444 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

Adding to 23531215364 its reverse (46351213532), we get a palindrome (69882428896).

The spelling of 23531215364 in words is "twenty-three billion, five hundred thirty-one million, two hundred fifteen thousand, three hundred sixty-four".