123110142 has 16 divisors (see below), whose sum is σ = 246884880. Its totient is φ = 40925952.

The previous prime is 123110093. The next prime is 123110147. The reversal of 123110142 is 241011321.

It is a super-2 number, since 2×123110142² = 30312214126520328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123110147) 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, 25267 + ... + 29742.

It is an arithmetic number, because the mean of its divisors is an integer number (15430305).

Almost surely, 2^123110142 is an apocalyptic number.

123110142 is an abundant number, since it is smaller than the sum of its proper divisors (123774738).

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

123110142 is a wasteful number, since it uses less digits than its factorization.

123110142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55387.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 123110142 is about 11095.5009801270. The cubic root of 123110142 is about 497.4673826919.

Adding to 123110142 its reverse (241011321), we get a palindrome (364121463).

The spelling of 123110142 in words is "one hundred twenty-three million, one hundred ten thousand, one hundred forty-two".