113312103001021 has 4 divisors (see below), whose sum is σ = 113313737198844. Its totient is φ = 113310468803200.

The previous prime is 113312103001007. The next prime is 113312103001073. The reversal of 113312103001021 is 120100301213311.

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 70739218456921 + 42572884544100 = 8410661^2 + 6524790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113312103001021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113312103001021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113312103001001) 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, 816994900 + ... + 817133581.

It is an arithmetic number, because the mean of its divisors is an integer number (28328434299711).

Almost surely, 2^{113312103001021} is an apocalyptic number.

It is an amenable number.

113312103001021 is a deficient number, since it is larger than the sum of its proper divisors (1634197823).

113312103001021 is an equidigital number, since it uses as much as digits as its factorization.

113312103001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634197822.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 113312103001021 its reverse (120100301213311), we get a palindrome (233412404214332).

The spelling of 113312103001021 in words is "one hundred thirteen trillion, three hundred twelve billion, one hundred three million, one thousand, twenty-one".