233121132173 has 2 divisors, whose sum is σ = 233121132174. Its totient is φ = 233121132172.

The previous prime is 233121132169. The next prime is 233121132203. The reversal of 233121132173 is 371231121332.

233121132173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215373030889 + 17748101284 = 464083^2 + 133222^2 .

It is a cyclic number.

It is not a de Polignac number, because 233121132173 - 2² = 233121132169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233121132103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116560566086 + 116560566087.

It is an arithmetic number, because the mean of its divisors is an integer number (116560566087).

Almost surely, 2^233121132173 is an apocalyptic number.

It is an amenable number.

233121132173 is a deficient number, since it is larger than the sum of its proper divisors (1).

233121132173 is an equidigital number, since it uses as much as digits as its factorization.

233121132173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 29.

The spelling of 233121132173 in words is "two hundred thirty-three billion, one hundred twenty-one million, one hundred thirty-two thousand, one hundred seventy-three".