2021313113323 has 12 divisors (see below), whose sum is σ = 2355441354552. Its totient is φ = 1729519827840.

The previous prime is 2021313113321. The next prime is 2021313113383. The reversal of 2021313113323 is 3233113131202.

It is not a de Polignac number, because 2021313113323 - 2¹ = 2021313113321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021313113321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36093990 + ... + 36149947.

It is an arithmetic number, because the mean of its divisors is an integer number (196286779546).

Almost surely, 2^{2021313113323} is an apocalyptic number.

2021313113323 is a deficient number, since it is larger than the sum of its proper divisors (334128241229).

2021313113323 is an equidigital number, since it uses as much as digits as its factorization.

2021313113323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72244522 (or 72244515 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 2021313113323 its reverse (3233113131202), we get a palindrome (5254426244525).

The spelling of 2021313113323 in words is "two trillion, twenty-one billion, three hundred thirteen million, one hundred thirteen thousand, three hundred twenty-three".