13123045156 has 12 divisors (see below), whose sum is σ = 24731892892. Its totient is φ = 6056790048.

The previous prime is 13123045151. The next prime is 13123045157. The reversal of 13123045156 is 65154032131.

It can be written as a sum of positive squares in 2 ways, for example, as 1019524900 + 12103520256 = 31930^2 + 110016^2 .

It is not an unprimeable number, because it can be changed into a prime (13123045151) 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, 126183075 + ... + 126183178.

Almost surely, 2^13123045156 is an apocalyptic number.

It is an amenable number.

13123045156 is a deficient number, since it is larger than the sum of its proper divisors (11608847736).

13123045156 is a wasteful number, since it uses less digits than its factorization.

13123045156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252366270 (or 252366268 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 13123045156 its reverse (65154032131), we get a palindrome (78277077287).

The spelling of 13123045156 in words is "thirteen billion, one hundred twenty-three million, forty-five thousand, one hundred fifty-six".