23452240521 has 16 divisors (see below), whose sum is σ = 32362608960. Its totient is φ = 15088839360.

The previous prime is 23452240517. The next prime is 23452240523. The reversal of 23452240521 is 12504225432.

It is not a de Polignac number, because 23452240521 - 2² = 23452240517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23452240523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135051 + ... + 255231.

It is an arithmetic number, because the mean of its divisors is an integer number (2022663060).

Almost surely, 2^23452240521 is an apocalyptic number.

It is an amenable number.

23452240521 is a deficient number, since it is larger than the sum of its proper divisors (8910368439).

23452240521 is a wasteful number, since it uses less digits than its factorization.

23452240521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122456.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 23452240521 its reverse (12504225432), we get a palindrome (35956465953).

The spelling of 23452240521 in words is "twenty-three billion, four hundred fifty-two million, two hundred forty thousand, five hundred twenty-one".