2021000131 has 2 divisors, whose sum is σ = 2021000132. Its totient is φ = 2021000130.

The previous prime is 2021000123. The next prime is 2021000147. The reversal of 2021000131 is 1310001202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021000131 - 2³ = 2021000123 is a prime.

It is a super-2 number, since 2×2021000131² = 8168883059004034322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021004131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010500065 + 1010500066.

It is an arithmetic number, because the mean of its divisors is an integer number (1010500066).

Almost surely, 2^2021000131 is an apocalyptic number.

2021000131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021000131 is an equidigital number, since it uses as much as digits as its factorization.

2021000131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2021000131 is about 44955.5350429733. The cubic root of 2021000131 is about 1264.3154562605.

Adding to 2021000131 its reverse (1310001202), we get a palindrome (3331001333).

The spelling of 2021000131 in words is "two billion, twenty-one million, one hundred thirty-one", and thus it is an aban number.