2021004131 has 2 divisors, whose sum is σ = 2021004132. Its totient is φ = 2021004130.

The previous prime is 2021004091. The next prime is 2021004143. The reversal of 2021004131 is 1314001202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021004131 - 2⁶ = 2021004067 is a prime.

It is a super-2 number, since 2×2021004131² = 8168915395038130322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021004151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010502065 + 1010502066.

It is an arithmetic number, because the mean of its divisors is an integer number (1010502066).

Almost surely, 2^2021004131 is an apocalyptic number.

2021004131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021004131 is an equidigital number, since it uses as much as digits as its factorization.

2021004131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2021004131 is about 44955.5795313552. The cubic root of 2021004131 is about 1264.3162903786.

Adding to 2021004131 its reverse (1314001202), we get a palindrome (3335005333).

The spelling of 2021004131 in words is "two billion, twenty-one million, four thousand, one hundred thirty-one".