23422523521 has 8 divisors (see below), whose sum is σ = 23537999520. Its totient is φ = 23307155808.

The previous prime is 23422523519. The next prime is 23422523563. The reversal of 23422523521 is 12532522432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23422523521 - 2¹ = 23422523519 is a prime.

It is a super-2 number, since 2×23422523521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23422523591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425085 + ... + 477013.

It is an arithmetic number, because the mean of its divisors is an integer number (2942249940).

Almost surely, 2^23422523521 is an apocalyptic number.

It is an amenable number.

23422523521 is a deficient number, since it is larger than the sum of its proper divisors (115475999).

23422523521 is a wasteful number, since it uses less digits than its factorization.

23422523521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54143.

The product of its digits is 28800, while the sum is 31.

The spelling of 23422523521 in words is "twenty-three billion, four hundred twenty-two million, five hundred twenty-three thousand, five hundred twenty-one".