2020031312309 has 2 divisors, whose sum is σ = 2020031312310. Its totient is φ = 2020031312308.

The previous prime is 2020031312213. The next prime is 2020031312381. The reversal of 2020031312309 is 9032131300202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1197240814225 + 822790498084 = 1094185^2 + 907078^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020031312309 - 2⁸ = 2020031312053 is a prime.

It is a super-2 number, since 2×2020031312309² (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 (2020031318309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010015656154 + 1010015656155.

It is an arithmetic number, because the mean of its divisors is an integer number (1010015656155).

Almost surely, 2^{2020031312309} is an apocalyptic number.

It is an amenable number.

2020031312309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020031312309 is an equidigital number, since it uses as much as digits as its factorization.

2020031312309 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 26.

The spelling of 2020031312309 in words is "two trillion, twenty billion, thirty-one million, three hundred twelve thousand, three hundred nine".