231113293 has 2 divisors, whose sum is σ = 231113294. Its totient is φ = 231113292.

The previous prime is 231113291. The next prime is 231113303. The reversal of 231113293 is 392311132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155301444 + 75811849 = 12462^2 + 8707^2 .

It is a cyclic number.

It is not a de Polignac number, because 231113293 - 2¹ = 231113291 is a prime.

Together with 231113291, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231113291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115556646 + 115556647.

It is an arithmetic number, because the mean of its divisors is an integer number (115556647).

Almost surely, 2^231113293 is an apocalyptic number.

It is an amenable number.

231113293 is a deficient number, since it is larger than the sum of its proper divisors (1).

231113293 is an equidigital number, since it uses as much as digits as its factorization.

231113293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 25.

The square root of 231113293 is about 15202.4107627705. The cubic root of 231113293 is about 613.6795367109.

The spelling of 231113293 in words is "two hundred thirty-one million, one hundred thirteen thousand, two hundred ninety-three".