231133093 has 2 divisors, whose sum is σ = 231133094. Its totient is φ = 231133092.

The previous prime is 231133039. The next prime is 231133109. The reversal of 231133093 is 390331132.

Together with previous prime (231133039) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214827649 + 16305444 = 14657^2 + 4038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231133093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231133193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115566546 + 115566547.

It is an arithmetic number, because the mean of its divisors is an integer number (115566547).

Almost surely, 2^231133093 is an apocalyptic number.

It is an amenable number.

231133093 is a deficient number, since it is larger than the sum of its proper divisors (1).

231133093 is an equidigital number, since it uses as much as digits as its factorization.

231133093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 231133093 is about 15203.0619613287. The cubic root of 231133093 is about 613.6970613164.

The spelling of 231133093 in words is "two hundred thirty-one million, one hundred thirty-three thousand, ninety-three".