2021311231319 has 2 divisors, whose sum is σ = 2021311231320. Its totient is φ = 2021311231318.

The previous prime is 2021311231283. The next prime is 2021311231337. The reversal of 2021311231319 is 9131321131202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021311231319 - 2³² = 2017016264023 is a prime.

It is a super-2 number, since 2×2021311231319² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021311231291 and 2021311231300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021311231019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010655615659 + 1010655615660.

It is an arithmetic number, because the mean of its divisors is an integer number (1010655615660).

Almost surely, 2^{2021311231319} is an apocalyptic number.

2021311231319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021311231319 is an equidigital number, since it uses as much as digits as its factorization.

2021311231319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 2021311231319 in words is "two trillion, twenty-one billion, three hundred eleven million, two hundred thirty-one thousand, three hundred nineteen".