102278008423 has 4 divisors (see below), whose sum is σ = 103083347200. Its totient is φ = 101472669648.

The previous prime is 102278008409. The next prime is 102278008439. The reversal of 102278008423 is 324800872201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102278008423 - 2²⁵ = 102244453991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102278000423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402669198 + ... + 402669451.

It is an arithmetic number, because the mean of its divisors is an integer number (25770836800).

Almost surely, 2^102278008423 is an apocalyptic number.

102278008423 is a deficient number, since it is larger than the sum of its proper divisors (805338777).

102278008423 is an equidigital number, since it uses as much as digits as its factorization.

102278008423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805338776.

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 102278008423 in words is "one hundred two billion, two hundred seventy-eight million, eight thousand, four hundred twenty-three".