113713539650421 has 4 divisors (see below), whose sum is σ = 151618052867232. Its totient is φ = 75809026433612.

The previous prime is 113713539650407. The next prime is 113713539650423. The reversal of 113713539650421 is 124056935317311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113713539650421 - 2²⁵ = 113713506095989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113713539650423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18952256608401 + ... + 18952256608406.

It is an arithmetic number, because the mean of its divisors is an integer number (37904513216808).

Almost surely, 2^{113713539650421} is an apocalyptic number.

It is an amenable number.

113713539650421 is a deficient number, since it is larger than the sum of its proper divisors (37904513216811).

113713539650421 is an equidigital number, since it uses as much as digits as its factorization.

113713539650421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37904513216810.

The product of its (nonzero) digits is 2041200, while the sum is 51.

The spelling of 113713539650421 in words is "one hundred thirteen trillion, seven hundred thirteen billion, five hundred thirty-nine million, six hundred fifty thousand, four hundred twenty-one".