2121232322331 has 24 divisors (see below), whose sum is σ = 3116962845360. Its totient is φ = 1389727348416.

The previous prime is 2121232322203. The next prime is 2121232322357. The reversal of 2121232322331 is 1332232321212.

2121232322331 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 2 + 3 + 2 + 322 + 331 = 666.

It is not a de Polignac number, because 2121232322331 - 2⁷ = 2121232322203 is a prime.

It is a super-2 number, since 2×2121232322331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121232322295 and 2121232322304.

It is not an unprimeable number, because it can be changed into a prime (2121232322431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 954961 + ... + 2270333.

It is an arithmetic number, because the mean of its divisors is an integer number (129873451890).

Almost surely, 2^{2121232322331} is an apocalyptic number.

2121232322331 is a deficient number, since it is larger than the sum of its proper divisors (995730523029).

2121232322331 is a wasteful number, since it uses less digits than its factorization.

2121232322331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318475 (or 1318472 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 2121232322331 its reverse (1332232321212), we get a palindrome (3453464643543).

The spelling of 2121232322331 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-two million, three hundred twenty-two thousand, three hundred thirty-one".