102430399987 has 2 divisors, whose sum is σ = 102430399988. Its totient is φ = 102430399986.

The previous prime is 102430399963. The next prime is 102430400027. The reversal of 102430399987 is 789993034201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102430399987 - 2⁷ = 102430399859 is a prime.

It is not a weakly prime, because it can be changed into another prime (102430399937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51215199993 + 51215199994.

It is an arithmetic number, because the mean of its divisors is an integer number (51215199994).

Almost surely, 2^102430399987 is an apocalyptic number.

102430399987 is a deficient number, since it is larger than the sum of its proper divisors (1).

102430399987 is an equidigital number, since it uses as much as digits as its factorization.

102430399987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 102430399987 in words is "one hundred two billion, four hundred thirty million, three hundred ninety-nine thousand, nine hundred eighty-seven".