102431297 has 2 divisors, whose sum is σ = 102431298. Its totient is φ = 102431296.

The previous prime is 102431293. The next prime is 102431311. The reversal of 102431297 is 792134201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51394561 + 51036736 = 7169^2 + 7144^2 .

It is an emirp because it is prime and its reverse (792134201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102431297 - 2² = 102431293 is a prime.

It is not a weakly prime, because it can be changed into another prime (102431291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51215648 + 51215649.

It is an arithmetic number, because the mean of its divisors is an integer number (51215649).

Almost surely, 2^102431297 is an apocalyptic number.

It is an amenable number.

102431297 is a deficient number, since it is larger than the sum of its proper divisors (1).

102431297 is an equidigital number, since it uses as much as digits as its factorization.

102431297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 102431297 is about 10120.8347975846. The cubic root of 102431297 is about 467.8904962711.

Adding to 102431297 its reverse (792134201), we get a palindrome (894565498).

The spelling of 102431297 in words is "one hundred two million, four hundred thirty-one thousand, two hundred ninety-seven".