231373097 has 2 divisors, whose sum is σ = 231373098. Its totient is φ = 231373096.

The previous prime is 231373081. The next prime is 231373147. The reversal of 231373097 is 790373132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135117376 + 96255721 = 11624^2 + 9811^2 .

It is a cyclic number.

It is not a de Polignac number, because 231373097 - 2⁴ = 231373081 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231373027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115686548 + 115686549.

It is an arithmetic number, because the mean of its divisors is an integer number (115686549).

Almost surely, 2^231373097 is an apocalyptic number.

It is an amenable number.

231373097 is a deficient number, since it is larger than the sum of its proper divisors (1).

231373097 is an equidigital number, since it uses as much as digits as its factorization.

231373097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 35.

The square root of 231373097 is about 15210.9531916971. The cubic root of 231373097 is about 613.9094047705.

Adding to 231373097 its sum of digits (35), we get a palindrome (231373132).

The spelling of 231373097 in words is "two hundred thirty-one million, three hundred seventy-three thousand, ninety-seven".