233433332921 has 2 divisors, whose sum is σ = 233433332922. Its totient is φ = 233433332920.

The previous prime is 233433332887. The next prime is 233433332969. The reversal of 233433332921 is 129233334332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161214295225 + 72219037696 = 401515^2 + 268736^2 .

It is a cyclic number.

It is not a de Polignac number, because 233433332921 - 2³⁴ = 216253463737 is a prime.

It is a super-2 number, since 2×233433332921² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (233433392921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116716666460 + 116716666461.

It is an arithmetic number, because the mean of its divisors is an integer number (116716666461).

Almost surely, 2^233433332921 is an apocalyptic number.

It is an amenable number.

233433332921 is a deficient number, since it is larger than the sum of its proper divisors (1).

233433332921 is an equidigital number, since it uses as much as digits as its factorization.

233433332921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 38.

The spelling of 233433332921 in words is "two hundred thirty-three billion, four hundred thirty-three million, three hundred thirty-two thousand, nine hundred twenty-one".