13201242502256 has 20 divisors (see below), whose sum is σ = 26121607505952. Its totient is φ = 6460182500736.

The previous prime is 13201242502237. The next prime is 13201242502351. The reversal of 13201242502256 is 65220524210231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8777421125 + ... + 8777422628.

Almost surely, 2^{13201242502256} is an apocalyptic number.

13201242502256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13201242502256 is a deficient number, since it is larger than the sum of its proper divisors (12920365003696).

13201242502256 is a wasteful number, since it uses less digits than its factorization.

13201242502256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17554843808 (or 17554843802 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 13201242502256 its reverse (65220524210231), we get a palindrome (78421766712487).

The spelling of 13201242502256 in words is "thirteen trillion, two hundred one billion, two hundred forty-two million, five hundred two thousand, two hundred fifty-six".