180317431097 has 2 divisors, whose sum is σ = 180317431098. Its totient is φ = 180317431096.

The previous prime is 180317431003. The next prime is 180317431111. The reversal of 180317431097 is 790134713081.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177446507536 + 2870923561 = 421244^2 + 53581^2 .

It is a cyclic number.

It is not a de Polignac number, because 180317431097 - 2¹⁴ = 180317414713 is a prime.

It is not a weakly prime, because it can be changed into another prime (180317431397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90158715548 + 90158715549.

It is an arithmetic number, because the mean of its divisors is an integer number (90158715549).

Almost surely, 2^180317431097 is an apocalyptic number.

It is an amenable number.

180317431097 is a deficient number, since it is larger than the sum of its proper divisors (1).

180317431097 is an equidigital number, since it uses as much as digits as its factorization.

180317431097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 180317431097 in words is "one hundred eighty billion, three hundred seventeen million, four hundred thirty-one thousand, ninety-seven".