102231097 has 2 divisors, whose sum is σ = 102231098. Its totient is φ = 102231096.

The previous prime is 102231083. The next prime is 102231109. The reversal of 102231097 is 790132201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77070841 + 25160256 = 8779^2 + 5016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102231097 is a prime.

It is not a weakly prime, because it can be changed into another prime (102231497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51115548 + 51115549.

It is an arithmetic number, because the mean of its divisors is an integer number (51115549).

Almost surely, 2^102231097 is an apocalyptic number.

It is an amenable number.

102231097 is a deficient number, since it is larger than the sum of its proper divisors (1).

102231097 is an equidigital number, since it uses as much as digits as its factorization.

102231097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 102231097 is about 10110.9394716812. The cubic root of 102231097 is about 467.5854698031.

Adding to 102231097 its reverse (790132201), we get a palindrome (892363298).

The spelling of 102231097 in words is "one hundred two million, two hundred thirty-one thousand, ninety-seven".