23240521205 has 32 divisors (see below), whose sum is σ = 30627047808. Its totient is φ = 16789766400.

The previous prime is 23240521193. The next prime is 23240521237. The reversal of 23240521205 is 50212504232.

It is not a de Polignac number, because 23240521205 - 2²² = 23236326901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5331887 + ... + 5336243.

It is an arithmetic number, because the mean of its divisors is an integer number (957095244).

Almost surely, 2^23240521205 is an apocalyptic number.

It is an amenable number.

23240521205 is a deficient number, since it is larger than the sum of its proper divisors (7386526603).

23240521205 is a wasteful number, since it uses less digits than its factorization.

23240521205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997.

The product of its (nonzero) digits is 4800, while the sum is 26.

It can be divided in two parts, 23240 and 521205, that added together give a palindrome (544445).

The spelling of 23240521205 in words is "twenty-three billion, two hundred forty million, five hundred twenty-one thousand, two hundred five".