113122010021 has 4 divisors (see below), whose sum is σ = 113123615712. Its totient is φ = 113120404332.

The previous prime is 113122009967. The next prime is 113122010047. The reversal of 113122010021 is 120010221311.

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 113122010021 - 2¹⁸ = 113121747877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113122009978 and 113122010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113122010081) by changing a digit.

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, 692075 + ... + 839768.

It is an arithmetic number, because the mean of its divisors is an integer number (28280903928).

Almost surely, 2^113122010021 is an apocalyptic number.

It is an amenable number.

113122010021 is a deficient number, since it is larger than the sum of its proper divisors (1605691).

113122010021 is an equidigital number, since it uses as much as digits as its factorization.

113122010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605690.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 113122010021 its reverse (120010221311), we get a palindrome (233132231332).

The spelling of 113122010021 in words is "one hundred thirteen billion, one hundred twenty-two million, ten thousand, twenty-one".