13213934503 has 64 divisors (see below), whose sum is σ = 17611776000. Its totient is φ = 9604137600.

The previous prime is 13213934491. The next prime is 13213934509. The reversal of 13213934503 is 30543931231.

It is a cyclic number.

It is not a de Polignac number, because 13213934503 - 2⁹ = 13213933991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213934509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36807438 + ... + 36807796.

It is an arithmetic number, because the mean of its divisors is an integer number (275184000).

Almost surely, 2^13213934503 is an apocalyptic number.

13213934503 is a deficient number, since it is larger than the sum of its proper divisors (4397841497).

13213934503 is a wasteful number, since it uses less digits than its factorization.

13213934503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716.

The product of its (nonzero) digits is 29160, while the sum is 34.

The spelling of 13213934503 in words is "thirteen billion, two hundred thirteen million, nine hundred thirty-four thousand, five hundred three".