13123022120 has 32 divisors (see below), whose sum is σ = 31798093320. Its totient is φ = 4845423360.

The previous prime is 13123022111. The next prime is 13123022179. The reversal of 13123022120 is 2122032131.

It can be written as a sum of positive squares in 4 ways, for example, as 7680419044 + 5442603076 = 87638^2 + 73774^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12617771 + ... + 12618810.

Almost surely, 2^13123022120 is an apocalyptic number.

13123022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123022120 is an abundant number, since it is smaller than the sum of its proper divisors (18675071200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123022120 is a wasteful number, since it uses less digits than its factorization.

13123022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25236605 (or 25236601 counting only the distinct ones).

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

Adding to 13123022120 its reverse (2122032131), we get a palindrome (15245054251).

The spelling of 13123022120 in words is "thirteen billion, one hundred twenty-three million, twenty-two thousand, one hundred twenty".