23215144052 has 24 divisors (see below), whose sum is σ = 41348707680. Its totient is φ = 11401745760.

The previous prime is 23215144049. The next prime is 23215144063. The reversal of 23215144052 is 25044151232.

It is a super-2 number, since 2×23215144052² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 115943 + ... + 244689.

It is an arithmetic number, because the mean of its divisors is an integer number (1722862820).

Almost surely, 2^23215144052 is an apocalyptic number.

It is an amenable number.

23215144052 is a deficient number, since it is larger than the sum of its proper divisors (18133563628).

23215144052 is a wasteful number, since it uses less digits than its factorization.

23215144052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129551 (or 129549 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 23215144052 its reverse (25044151232), we get a palindrome (48259295284).

The spelling of 23215144052 in words is "twenty-three billion, two hundred fifteen million, one hundred forty-four thousand, fifty-two".