23013221012 has 12 divisors (see below), whose sum is σ = 40642615860. Its totient is φ = 11401045056.

The previous prime is 23013220981. The next prime is 23013221017. The reversal of 23013221012 is 21012231032.

It can be written as a sum of positive squares in 2 ways, for example, as 19666135696 + 3347085316 = 140236^2 + 57854^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013221017) 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, 26390873 + ... + 26391744.

It is an arithmetic number, because the mean of its divisors is an integer number (3386884655).

Almost surely, 2^23013221012 is an apocalyptic number.

It is an amenable number.

23013221012 is a deficient number, since it is larger than the sum of its proper divisors (17629394848).

23013221012 is a wasteful number, since it uses less digits than its factorization.

23013221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52782730 (or 52782728 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23013221012 its reverse (21012231032), we get a palindrome (44025452044).

The spelling of 23013221012 in words is "twenty-three billion, thirteen million, two hundred twenty-one thousand, twelve".