2331131301021 has 16 divisors (see below), whose sum is σ = 3243650866560. Its totient is φ = 1486363707840.

The previous prime is 2331131301019. The next prime is 2331131301047. The reversal of 2331131301021 is 1201031311332.

It is a happy number.

It is not a de Polignac number, because 2331131301021 - 2¹ = 2331131301019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331131301061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089910 + ... + 2418711.

It is an arithmetic number, because the mean of its divisors is an integer number (202728179160).

Almost surely, 2^{2331131301021} is an apocalyptic number.

It is an amenable number.

2331131301021 is a deficient number, since it is larger than the sum of its proper divisors (912519565539).

2331131301021 is a wasteful number, since it uses less digits than its factorization.

2331131301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518276.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 2331131301021 its reverse (1201031311332), we get a palindrome (3532162612353).

The spelling of 2331131301021 in words is "two trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred one thousand, twenty-one".