1113132331021 has 12 divisors (see below), whose sum is σ = 1243907702172. Its totient is φ = 992514271104.

The previous prime is 1113132330991. The next prime is 1113132331049. The reversal of 1113132331021 is 1201332313111.

It can be written as a sum of positive squares in 2 ways, for example, as 1033040500996 + 80091830025 = 1016386^2 + 283005^2 .

It is not a de Polignac number, because 1113132331021 - 2¹⁵ = 1113132298253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1113132330983 and 1113132331001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113132331321) 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 11 ways as a sum of consecutive naturals, for example, 90684130 + ... + 90696403.

It is an arithmetic number, because the mean of its divisors is an integer number (103658975181).

Almost surely, 2^{1113132331021} is an apocalyptic number.

It is an amenable number.

1113132331021 is a deficient number, since it is larger than the sum of its proper divisors (130775371151).

1113132331021 is a wasteful number, since it uses less digits than its factorization.

1113132331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181380588 (or 181380569 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1113132331021 its reverse (1201332313111), we get a palindrome (2314464644132).

The spelling of 1113132331021 in words is "one trillion, one hundred thirteen billion, one hundred thirty-two million, three hundred thirty-one thousand, twenty-one".