102031199117 has 2 divisors, whose sum is σ = 102031199118. Its totient is φ = 102031199116.

The previous prime is 102031199099. The next prime is 102031199183. The reversal of 102031199117 is 711991130201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56803095556 + 45228103561 = 238334^2 + 212669^2 .

It is a cyclic number.

It is not a de Polignac number, because 102031199117 - 2¹⁴ = 102031182733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102031199917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51015599558 + 51015599559.

It is an arithmetic number, because the mean of its divisors is an integer number (51015599559).

Almost surely, 2^102031199117 is an apocalyptic number.

It is an amenable number.

102031199117 is a deficient number, since it is larger than the sum of its proper divisors (1).

102031199117 is an equidigital number, since it uses as much as digits as its factorization.

102031199117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 35.

The spelling of 102031199117 in words is "one hundred two billion, thirty-one million, one hundred ninety-nine thousand, one hundred seventeen".