23520422011 has 4 divisors (see below), whose sum is σ = 23553596800. Its totient is φ = 23487247224.

The previous prime is 23520421973. The next prime is 23520422033. The reversal of 23520422011 is 11022402532.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23520422011 - 2¹⁷ = 23520290939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23520422041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16586331 + ... + 16587748.

It is an arithmetic number, because the mean of its divisors is an integer number (5888399200).

Almost surely, 2^23520422011 is an apocalyptic number.

23520422011 is a deficient number, since it is larger than the sum of its proper divisors (33174789).

23520422011 is an equidigital number, since it uses as much as digits as its factorization.

23520422011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33174788.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 23520422011 its reverse (11022402532), we get a palindrome (34542824543).

The spelling of 23520422011 in words is "twenty-three billion, five hundred twenty million, four hundred twenty-two thousand, eleven".