102331997 has 2 divisors, whose sum is σ = 102331998. Its totient is φ = 102331996.

The previous prime is 102331987. The next prime is 102332033. The reversal of 102331997 is 799133201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55190041 + 47141956 = 7429^2 + 6866^2 .

It is a cyclic number.

It is not a de Polignac number, because 102331997 - 2²² = 98137693 is a prime.

It is a super-2 number, since 2×102331997² = 20943675220016018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102331937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51165998 + 51165999.

It is an arithmetic number, because the mean of its divisors is an integer number (51165999).

Almost surely, 2^102331997 is an apocalyptic number.

It is an amenable number.

102331997 is a deficient number, since it is larger than the sum of its proper divisors (1).

102331997 is an equidigital number, since it uses as much as digits as its factorization.

102331997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 102331997 is about 10115.9278862594. The cubic root of 102331997 is about 467.7392516500.

The spelling of 102331997 in words is "one hundred two million, three hundred thirty-one thousand, nine hundred ninety-seven".