13102723687 has 4 divisors (see below), whose sum is σ = 13103125920. Its totient is φ = 13102321456.

The previous prime is 13102723663. The next prime is 13102723771. The reversal of 13102723687 is 78632720131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13102723687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13102723607) 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, 147487 + ... + 218992.

It is an arithmetic number, because the mean of its divisors is an integer number (3275781480).

Almost surely, 2^13102723687 is an apocalyptic number.

13102723687 is a deficient number, since it is larger than the sum of its proper divisors (402233).

13102723687 is an equidigital number, since it uses as much as digits as its factorization.

13102723687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402232.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 13102723687 in words is "thirteen billion, one hundred two million, seven hundred twenty-three thousand, six hundred eighty-seven".