233120331021 has 32 divisors (see below), whose sum is σ = 328737024000. Its totient is φ = 146779202304.

The previous prime is 233120331011. The next prime is 233120331043. The reversal of 233120331021 is 120133021332.

It is not a de Polignac number, because 233120331021 - 2¹⁰ = 233120329997 is a prime.

It is a super-2 number, since 2×233120331021² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233120331011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271605 + ... + 734853.

It is an arithmetic number, because the mean of its divisors is an integer number (10273032000).

Almost surely, 2^233120331021 is an apocalyptic number.

It is an amenable number.

233120331021 is a deficient number, since it is larger than the sum of its proper divisors (95616692979).

233120331021 is a wasteful number, since it uses less digits than its factorization.

233120331021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463425.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 233120331021 its reverse (120133021332), we get a palindrome (353253352353).

The spelling of 233120331021 in words is "two hundred thirty-three billion, one hundred twenty million, three hundred thirty-one thousand, twenty-one".