113133001021 has 16 divisors (see below), whose sum is σ = 122369868720. Its totient is φ = 104200750080.

The previous prime is 113133001019. The next prime is 113133001027. The reversal of 113133001021 is 120100331311.

It can be written as a sum of positive squares in 8 ways, for example, as 1135016100 + 111997984921 = 33690^2 + 334661^2 .

It is a cyclic number.

It is not a de Polignac number, because 113133001021 - 2¹ = 113133001019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113133000986 and 113133001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113133001027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72606 + ... + 481183.

It is an arithmetic number, because the mean of its divisors is an integer number (7648116795).

Almost surely, 2^113133001021 is an apocalyptic number.

It is an amenable number.

113133001021 is a deficient number, since it is larger than the sum of its proper divisors (9236867699).

113133001021 is a wasteful number, since it uses less digits than its factorization.

113133001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554064.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 113133001021 its reverse (120100331311), we get a palindrome (233233332332).

The spelling of 113133001021 in words is "one hundred thirteen billion, one hundred thirty-three million, one thousand, twenty-one".