13881413723 has 4 divisors (see below), whose sum is σ = 13881649368. Its totient is φ = 13881178080.

The previous prime is 13881413719. The next prime is 13881413729. The reversal of 13881413723 is 32731418831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32731418831 = 8363 ⋅3913837.

It is a cyclic number.

It is not a de Polignac number, because 13881413723 - 2² = 13881413719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13881413729) 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, 57740 + ... + 176342.

It is an arithmetic number, because the mean of its divisors is an integer number (3470412342).

Almost surely, 2^13881413723 is an apocalyptic number.

13881413723 is a deficient number, since it is larger than the sum of its proper divisors (235645).

13881413723 is a wasteful number, since it uses less digits than its factorization.

13881413723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235644.

The product of its digits is 96768, while the sum is 41.

The spelling of 13881413723 in words is "thirteen billion, eight hundred eighty-one million, four hundred thirteen thousand, seven hundred twenty-three".