113313201200021 has 4 divisors (see below), whose sum is σ = 114865436832972. Its totient is φ = 111760965567072.

The previous prime is 113313201199937. The next prime is 113313201200029. The reversal of 113313201200021 is 120002102313311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31983718822225 + 81329482377796 = 5655415^2 + 9018286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113313201200021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113313201199966 and 113313201200002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113313201200029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776117816366 + ... + 776117816511.

It is an arithmetic number, because the mean of its divisors is an integer number (28716359208243).

Almost surely, 2^{113313201200021} is an apocalyptic number.

It is an amenable number.

113313201200021 is a deficient number, since it is larger than the sum of its proper divisors (1552235632951).

113313201200021 is an equidigital number, since it uses as much as digits as its factorization.

113313201200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552235632950.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 113313201200021 its reverse (120002102313311), we get a palindrome (233315303513332).

The spelling of 113313201200021 in words is "one hundred thirteen trillion, three hundred thirteen billion, two hundred one million, two hundred thousand, twenty-one".