102842185923 has 32 divisors (see below), whose sum is σ = 156808108800. Its totient is φ = 66587272128.

The previous prime is 102842185921. The next prime is 102842185961. The reversal of 102842185923 is 329581248201.

102842185923 is a `hidden beast` number, since 1 + 0 + 2 + 8 + 42 + 18 + 592 + 3 = 666.

It is not a de Polignac number, because 102842185923 - 2¹ = 102842185921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102842185921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256690 + ... + 521127.

It is an arithmetic number, because the mean of its divisors is an integer number (4900253400).

Almost surely, 2^102842185923 is an apocalyptic number.

102842185923 is a deficient number, since it is larger than the sum of its proper divisors (53965922877).

102842185923 is an equidigital number, since it uses as much as digits as its factorization.

102842185923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777968 (or 777962 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 102842185923 in words is "one hundred two billion, eight hundred forty-two million, one hundred eighty-five thousand, nine hundred twenty-three".