231085373 has 2 divisors, whose sum is σ = 231085374. Its totient is φ = 231085372.

The previous prime is 231085357. The next prime is 231085399. The reversal of 231085373 is 373580132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210772324 + 20313049 = 14518^2 + 4507^2 .

It is a cyclic number.

It is not a de Polignac number, because 231085373 - 2⁴ = 231085357 is a prime.

It is a super-2 number, since 2×231085373² = 106800899229098258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231085973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115542686 + 115542687.

It is an arithmetic number, because the mean of its divisors is an integer number (115542687).

Almost surely, 2^231085373 is an apocalyptic number.

It is an amenable number.

231085373 is a deficient number, since it is larger than the sum of its proper divisors (1).

231085373 is an equidigital number, since it uses as much as digits as its factorization.

231085373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 231085373 is about 15201.4924596238. The cubic root of 231085373 is about 613.6548235461.

The spelling of 231085373 in words is "two hundred thirty-one million, eighty-five thousand, three hundred seventy-three".