102321432019 has 2 divisors, whose sum is σ = 102321432020. Its totient is φ = 102321432018.

The previous prime is 102321432001. The next prime is 102321432043. The reversal of 102321432019 is 910234123201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102321432019 - 2⁵ = 102321431987 is a prime.

It is a super-2 number, since 2×102321432019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102321432049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51160716009 + 51160716010.

It is an arithmetic number, because the mean of its divisors is an integer number (51160716010).

Almost surely, 2^102321432019 is an apocalyptic number.

102321432019 is a deficient number, since it is larger than the sum of its proper divisors (1).

102321432019 is an equidigital number, since it uses as much as digits as its factorization.

102321432019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 102321432019 in words is "one hundred two billion, three hundred twenty-one million, four hundred thirty-two thousand, nineteen".