102078423 has 12 divisors (see below), whose sum is σ = 147742920. Its totient is φ = 67915536.

The previous prime is 102078413. The next prime is 102078433. The reversal of 102078423 is 324870201.

It is an interprime number because it is at equal distance from previous prime (102078413) and next prime (102078433).

It is not a de Polignac number, because 102078423 - 2⁶ = 102078359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102078413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6561 + ... + 15722.

It is an arithmetic number, because the mean of its divisors is an integer number (12311910).

Almost surely, 2^102078423 is an apocalyptic number.

102078423 is a deficient number, since it is larger than the sum of its proper divisors (45664497).

102078423 is a wasteful number, since it uses less digits than its factorization.

102078423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22798 (or 22795 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 102078423 is about 10103.3867094158. The cubic root of 102078423 is about 467.3525866162.

The spelling of 102078423 in words is "one hundred two million, seventy-eight thousand, four hundred twenty-three".