123012113 has 16 divisors (see below), whose sum is σ = 148538880. Its totient is φ = 99629376.

The previous prime is 123012107. The next prime is 123012143. The reversal of 123012113 is 311210321.

It is not a de Polignac number, because 123012113 - 2²⁰ = 121963537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123012103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3095 + ... + 15987.

It is an arithmetic number, because the mean of its divisors is an integer number (9283680).

Almost surely, 2^123012113 is an apocalyptic number.

It is an amenable number.

123012113 is a deficient number, since it is larger than the sum of its proper divisors (25526767).

123012113 is a wasteful number, since it uses less digits than its factorization.

123012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12976.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 123012113 is about 11091.0825891795. The cubic root of 123012113 is about 497.3353080616.

Adding to 123012113 its reverse (311210321), we get a palindrome (434222434).

The spelling of 123012113 in words is "one hundred twenty-three million, twelve thousand, one hundred thirteen".