120423123 has 24 divisors (see below), whose sum is σ = 180839568. Its totient is φ = 77153472.

The previous prime is 120423113. The next prime is 120423133. The reversal of 120423123 is 321324021.

120423123 is a `hidden beast` number, since 120 + 423 + 123 = 666.

It is an interprime number because it is at equal distance from previous prime (120423113) and next prime (120423133).

It is not a de Polignac number, because 120423123 - 2⁸ = 120422867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120423096 and 120423105.

It is not an unprimeable number, because it can be changed into a prime (120423113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25461 + ... + 29817.

It is an arithmetic number, because the mean of its divisors is an integer number (7534982).

Almost surely, 2^120423123 is an apocalyptic number.

120423123 is a deficient number, since it is larger than the sum of its proper divisors (60416445).

120423123 is a wasteful number, since it uses less digits than its factorization.

120423123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483 (or 4480 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 120423123 is about 10973.7469899757. The cubic root of 120423123 is about 493.8214631808.

Adding to 120423123 its reverse (321324021), we get a palindrome (441747144).

The spelling of 120423123 in words is "one hundred twenty million, four hundred twenty-three thousand, one hundred twenty-three".