2021113020331 has 4 divisors (see below), whose sum is σ = 2021152432000. Its totient is φ = 2021073608664.

The previous prime is 2021113020319. The next prime is 2021113020373. The reversal of 2021113020331 is 1330203111202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021113020331 - 2¹⁵ = 2021112987563 is a prime.

It is a super-2 number, since 2×2021113020331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021113020299 and 2021113020308.

It is not an unprimeable number, because it can be changed into a prime (2021113020301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19628811 + ... + 19731508.

It is an arithmetic number, because the mean of its divisors is an integer number (505288108000).

Almost surely, 2^{2021113020331} is an apocalyptic number.

2021113020331 is a deficient number, since it is larger than the sum of its proper divisors (39411669).

2021113020331 is an equidigital number, since it uses as much as digits as its factorization.

2021113020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39411668.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2021113020331 its reverse (1330203111202), we get a palindrome (3351316131533).

The spelling of 2021113020331 in words is "two trillion, twenty-one billion, one hundred thirteen million, twenty thousand, three hundred thirty-one".