12603931356 has 12 divisors (see below), whose sum is σ = 29409173192. Its totient is φ = 4201310448.

The previous prime is 12603931349. The next prime is 12603931399. The reversal of 12603931356 is 65313930621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525163795 + ... + 525163818.

Almost surely, 2^12603931356 is an apocalyptic number.

It is an amenable number.

12603931356 is an abundant number, since it is smaller than the sum of its proper divisors (16805241836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12603931356 is a wasteful number, since it uses less digits than its factorization.

12603931356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050327620 (or 1050327618 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 39.

The spelling of 12603931356 in words is "twelve billion, six hundred three million, nine hundred thirty-one thousand, three hundred fifty-six".