123120234 has 12 divisors (see below), whose sum is σ = 266760546. Its totient is φ = 41040072.

The previous prime is 123120227. The next prime is 123120241. The reversal of 123120234 is 432021321.

It is an interprime number because it is at equal distance from previous prime (123120227) and next prime (123120241).

It can be written as a sum of positive squares in only one way, i.e., 111197025 + 11923209 = 10545^2 + 3453^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6840013 = 123120234 / (1 + 2 + 3 + 1 + 2 + 0 + 2 + 3 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3419989 + ... + 3420024.

Almost surely, 2^123120234 is an apocalyptic number.

123120234 is an abundant number, since it is smaller than the sum of its proper divisors (143640312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123120234 is a wasteful number, since it uses less digits than its factorization.

123120234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6840021 (or 6840018 counting only the distinct ones).

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

The square root of 123120234 is about 11095.9557497315. The cubic root of 123120234 is about 497.4809756788.

Adding to 123120234 its reverse (432021321), we get a palindrome (555141555).

The spelling of 123120234 in words is "one hundred twenty-three million, one hundred twenty thousand, two hundred thirty-four".