102040423 has 8 divisors (see below), whose sum is σ = 104636448. Its totient is φ = 99469344.

The previous prime is 102040403. The next prime is 102040447. The reversal of 102040423 is 324040201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102040423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102040397 and 102040406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102040403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2190 + ... + 14452.

It is an arithmetic number, because the mean of its divisors is an integer number (13079556).

Almost surely, 2^102040423 is an apocalyptic number.

102040423 is a deficient number, since it is larger than the sum of its proper divisors (2596025).

102040423 is a wasteful number, since it uses less digits than its factorization.

102040423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12473.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 102040423 is about 10101.5059768334. The cubic root of 102040423 is about 467.2945867570.

Adding to 102040423 its reverse (324040201), we get a palindrome (426080624).

The spelling of 102040423 in words is "one hundred two million, forty thousand, four hundred twenty-three".