233123133231 has 12 divisors (see below), whose sum is σ = 336818779752. Its totient is φ = 155376022896.

The previous prime is 233123133119. The next prime is 233123133283. The reversal of 233123133231 is 132331321332.

233123133231 is a `hidden beast` number, since 2 + 3 + 312 + 313 + 3 + 2 + 31 = 666.

It is not a de Polignac number, because 233123133231 - 2⁹ = 233123132719 is a prime.

It is a super-2 number, since 2×233123133231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 233123133195 and 233123133204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233103133231) 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, 3245776 + ... + 3316821.

It is an arithmetic number, because the mean of its divisors is an integer number (28068231646).

Almost surely, 2^233123133231 is an apocalyptic number.

233123133231 is a deficient number, since it is larger than the sum of its proper divisors (103695646521).

233123133231 is a wasteful number, since it uses less digits than its factorization.

233123133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6566550 (or 6566547 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 233123133231 its reverse (132331321332), we get a palindrome (365454454563).

The spelling of 233123133231 in words is "two hundred thirty-three billion, one hundred twenty-three million, one hundred thirty-three thousand, two hundred thirty-one".