2021311021319 has 2 divisors, whose sum is σ = 2021311021320. Its totient is φ = 2021311021318.

The previous prime is 2021311021313. The next prime is 2021311021337. The reversal of 2021311021319 is 9131201131202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021311021319 - 2²⁰ = 2021309972743 is a prime.

It is a super-2 number, since 2×2021311021319² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021311021313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010655510659 + 1010655510660.

It is an arithmetic number, because the mean of its divisors is an integer number (1010655510660).

Almost surely, 2^{2021311021319} is an apocalyptic number.

2021311021319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021311021319 is an equidigital number, since it uses as much as digits as its factorization.

2021311021319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 2021311021319 in words is "two trillion, twenty-one billion, three hundred eleven million, twenty-one thousand, three hundred nineteen".