2021002331 has 2 divisors, whose sum is σ = 2021002332. Its totient is φ = 2021002330.

The previous prime is 2021002327. The next prime is 2021002391. The reversal of 2021002331 is 1332001202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021002331 - 2² = 2021002327 is a prime.

It is a super-2 number, since 2×2021002331² = 8168900843814867122, which contains 22 as substring.

2021002331 is a modest number, since divided by 2331 gives 2021 as remainder.

It is not a weakly prime, because it can be changed into another prime (2021002391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010501165 + 1010501166.

It is an arithmetic number, because the mean of its divisors is an integer number (1010501166).

Almost surely, 2^2021002331 is an apocalyptic number.

2021002331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021002331 is an equidigital number, since it uses as much as digits as its factorization.

2021002331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2021002331 is about 44955.5595115888. The cubic root of 2021002331 is about 1264.3159150256.

Adding to 2021002331 its reverse (1332001202), we get a palindrome (3353003533).

The spelling of 2021002331 in words is "two billion, twenty-one million, two thousand, three hundred thirty-one".