13213723755 has 32 divisors (see below), whose sum is σ = 22285002240. Its totient is φ = 6667315200.

The previous prime is 13213723723. The next prime is 13213723771. The reversal of 13213723755 is 55732731231.

It is not a de Polignac number, because 13213723755 - 2⁵ = 13213723723 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180555 + ... + 242955.

It is an arithmetic number, because the mean of its divisors is an integer number (696406320).

Almost surely, 2^13213723755 is an apocalyptic number.

13213723755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13213723755 is a deficient number, since it is larger than the sum of its proper divisors (9071278485).

13213723755 is a wasteful number, since it uses less digits than its factorization.

13213723755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63171.

The product of its digits is 132300, while the sum is 39.

The spelling of 13213723755 in words is "thirteen billion, two hundred thirteen million, seven hundred twenty-three thousand, seven hundred fifty-five".