23220413012 has 6 divisors (see below), whose sum is σ = 40635722778. Its totient is φ = 11610206504.

The previous prime is 23220412987. The next prime is 23220413023. The reversal of 23220413012 is 21031402232.

It can be written as a sum of positive squares in only one way, i.e., 22288698436 + 931714576 = 149294^2 + 30524^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2902551623 + ... + 2902551630.

It is an arithmetic number, because the mean of its divisors is an integer number (6772620463).

Almost surely, 2^23220413012 is an apocalyptic number.

It is an amenable number.

23220413012 is a deficient number, since it is larger than the sum of its proper divisors (17415309766).

23220413012 is a wasteful number, since it uses less digits than its factorization.

23220413012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5805103257 (or 5805103255 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23220413012 its reverse (21031402232), we get a palindrome (44251815244).

The spelling of 23220413012 in words is "twenty-three billion, two hundred twenty million, four hundred thirteen thousand, twelve".