1021331120113 has 16 divisors (see below), whose sum is σ = 1031045299200. Its totient is φ = 1011675510720.

The previous prime is 1021331120099. The next prime is 1021331120141. The reversal of 1021331120113 is 3110211331201.

It is a cyclic number.

It is not a de Polignac number, because 1021331120113 - 2⁵ = 1021331120081 is a prime.

It is a super-2 number, since 2×1021331120113² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021331120143) 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, 37871128 + ... + 37898086.

It is an arithmetic number, because the mean of its divisors is an integer number (64440331200).

Almost surely, 2^{1021331120113} is an apocalyptic number.

It is an amenable number.

1021331120113 is a deficient number, since it is larger than the sum of its proper divisors (9714179087).

1021331120113 is a wasteful number, since it uses less digits than its factorization.

1021331120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28032.

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

Adding to 1021331120113 its reverse (3110211331201), we get a palindrome (4131542451314).

The spelling of 1021331120113 in words is "one trillion, twenty-one billion, three hundred thirty-one million, one hundred twenty thousand, one hundred thirteen".