233020013121 has 24 divisors (see below), whose sum is σ = 384736736384. Its totient is φ = 133130485440.

The previous prime is 233020013111. The next prime is 233020013173. The reversal of 233020013121 is 121310020332.

233020013121 is a `hidden beast` number, since 2 + 330 + 20 + 0 + 1 + 312 + 1 = 666.

It is not a de Polignac number, because 233020013121 - 2⁹ = 233020012609 is a prime.

It is a super-2 number, since 2×233020013121² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 233020013094 and 233020013103.

It is not an unprimeable number, because it can be changed into a prime (233020013111) 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, 27540 + ... + 683226.

Almost surely, 2^233020013121 is an apocalyptic number.

233020013121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

233020013121 is a deficient number, since it is larger than the sum of its proper divisors (151716723263).

233020013121 is a wasteful number, since it uses less digits than its factorization.

233020013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661341 (or 661338 counting only the distinct ones).

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

Adding to 233020013121 its reverse (121310020332), we get a palindrome (354330033453).

The spelling of 233020013121 in words is "two hundred thirty-three billion, twenty million, thirteen thousand, one hundred twenty-one".