231173843 has 2 divisors, whose sum is σ = 231173844. Its totient is φ = 231173842.

The previous prime is 231173809. The next prime is 231173861. The reversal of 231173843 is 348371132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231173843 - 2¹⁰ = 231172819 is a prime.

It is not a weakly prime, because it can be changed into another prime (231173443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115586921 + 115586922.

It is an arithmetic number, because the mean of its divisors is an integer number (115586922).

Almost surely, 2^231173843 is an apocalyptic number.

231173843 is a deficient number, since it is larger than the sum of its proper divisors (1).

231173843 is an equidigital number, since it uses as much as digits as its factorization.

231173843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 231173843 is about 15204.4020928151. The cubic root of 231173843 is about 613.7331252213.

The spelling of 231173843 in words is "two hundred thirty-one million, one hundred seventy-three thousand, eight hundred forty-three".