2021113112023 has 16 divisors (see below), whose sum is σ = 2221417872000. Its totient is φ = 1831435516512.

The previous prime is 2021113112021. The next prime is 2021113112069. The reversal of 2021113112023 is 3202113111202.

It is a cyclic number.

It is not a de Polignac number, because 2021113112023 - 2¹ = 2021113112021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021113112021) 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, 17081613 + ... + 17199526.

It is an arithmetic number, because the mean of its divisors is an integer number (138838617000).

Almost surely, 2^{2021113112023} is an apocalyptic number.

2021113112023 is a deficient number, since it is larger than the sum of its proper divisors (200304759977).

2021113112023 is a wasteful number, since it uses less digits than its factorization.

2021113112023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34281294.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2021113112023 its reverse (3202113111202), we get a palindrome (5223226223225).

The spelling of 2021113112023 in words is "two trillion, twenty-one billion, one hundred thirteen million, one hundred twelve thousand, twenty-three".