2021233131 has 12 divisors (see below), whose sum is σ = 2922355800. Its totient is φ = 1346197920.

The previous prime is 2021233099. The next prime is 2021233141. The reversal of 2021233131 is 1313321202.

It is not a de Polignac number, because 2021233131 - 2⁵ = 2021233099 is a prime.

It is a super-2 number, since 2×2021233131² = 8170766739704126322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021233141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97605 + ... + 116486.

It is an arithmetic number, because the mean of its divisors is an integer number (243529650).

Almost surely, 2^2021233131 is an apocalyptic number.

2021233131 is a deficient number, since it is larger than the sum of its proper divisors (901122669).

2021233131 is a wasteful number, since it uses less digits than its factorization.

2021233131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215146 (or 215143 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2021233131 is about 44958.1264178124. The cubic root of 2021233131 is about 1264.3640418059.

Adding to 2021233131 its reverse (1313321202), we get a palindrome (3334554333).

The spelling of 2021233131 in words is "two billion, twenty-one million, two hundred thirty-three thousand, one hundred thirty-one".