233101993 has 2 divisors, whose sum is σ = 233101994. Its totient is φ = 233101992.

The previous prime is 233101991. The next prime is 233102047. The reversal of 233101993 is 399101332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136118889 + 96983104 = 11667^2 + 9848^2 .

It is a cyclic number.

It is not a de Polignac number, because 233101993 - 2¹ = 233101991 is a prime.

Together with 233101991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (233101991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116550996 + 116550997.

It is an arithmetic number, because the mean of its divisors is an integer number (116550997).

Almost surely, 2^233101993 is an apocalyptic number.

It is an amenable number.

233101993 is a deficient number, since it is larger than the sum of its proper divisors (1).

233101993 is an equidigital number, since it uses as much as digits as its factorization.

233101993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 233101993 is about 15267.6780487407. The cubic root of 233101993 is about 615.4347229315.

The spelling of 233101993 in words is "two hundred thirty-three million, one hundred one thousand, nine hundred ninety-three".