13123611651 has 16 divisors (see below), whose sum is σ = 17595302400. Its totient is φ = 8700598368.

The previous prime is 13123611647. The next prime is 13123611727. The reversal of 13123611651 is 15611632131.

It is not a de Polignac number, because 13123611651 - 2² = 13123611647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13123615651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530680 + ... + 554858.

It is an arithmetic number, because the mean of its divisors is an integer number (1099706400).

Almost surely, 2^13123611651 is an apocalyptic number.

13123611651 is a deficient number, since it is larger than the sum of its proper divisors (4471690749).

13123611651 is a wasteful number, since it uses less digits than its factorization.

13123611651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25178.

The product of its digits is 3240, while the sum is 30.

The spelling of 13123611651 in words is "thirteen billion, one hundred twenty-three million, six hundred eleven thousand, six hundred fifty-one".