233112021231 has 12 divisors (see below), whose sum is σ = 328035754392. Its totient is φ = 147228644304.

The previous prime is 233112021223. The next prime is 233112021257. The reversal of 233112021231 is 132120211332.

It is not a de Polignac number, because 233112021231 - 2³ = 233112021223 is a prime.

It is a super-2 number, since 2×233112021231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 233112021198 and 233112021207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233112021631) 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, 107622196 + ... + 107624361.

It is an arithmetic number, because the mean of its divisors is an integer number (27336312866).

Almost surely, 2^233112021231 is an apocalyptic number.

233112021231 is a deficient number, since it is larger than the sum of its proper divisors (94923733161).

233112021231 is a wasteful number, since it uses less digits than its factorization.

233112021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215246598 (or 215246579 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 233112021231 its reverse (132120211332), we get a palindrome (365232232563).

The spelling of 233112021231 in words is "two hundred thirty-three billion, one hundred twelve million, twenty-one thousand, two hundred thirty-one".