123119913 has 16 divisors (see below), whose sum is σ = 188036480. Its totient is φ = 70194816.

The previous prime is 123119903. The next prime is 123119921. The reversal of 123119913 is 319911321.

It is a happy number.

It is not a de Polignac number, because 123119913 - 2¹⁴ = 123103529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123119903) 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, 3183 + ... + 16011.

It is an arithmetic number, because the mean of its divisors is an integer number (11752280).

Almost surely, 2^123119913 is an apocalyptic number.

It is an amenable number.

123119913 is a deficient number, since it is larger than the sum of its proper divisors (64916567).

123119913 is a wasteful number, since it uses less digits than its factorization.

123119913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13296.

The product of its digits is 1458, while the sum is 30.

The square root of 123119913 is about 11095.9412849925. The cubic root of 123119913 is about 497.4805433331.

The spelling of 123119913 in words is "one hundred twenty-three million, one hundred nineteen thousand, nine hundred thirteen".