123123113 has 4 divisors (see below), whose sum is σ = 124606608. Its totient is φ = 121639620.

The previous prime is 123123107. The next prime is 123123137. The reversal of 123123113 is 311321321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123123113 - 2¹⁰ = 123122089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123123091 and 123123100.

It is not an unprimeable number, because it can be changed into a prime (123123613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741623 + ... + 741788.

It is an arithmetic number, because the mean of its divisors is an integer number (31151652).

Almost surely, 2^123123113 is an apocalyptic number.

It is an amenable number.

123123113 is a deficient number, since it is larger than the sum of its proper divisors (1483495).

123123113 is an equidigital number, since it uses as much as digits as its factorization.

123123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483494.

The product of its digits is 108, while the sum is 17.

The square root of 123123113 is about 11096.0854809252. The cubic root of 123123113 is about 497.4848532883.

Adding to 123123113 its reverse (311321321), we get a palindrome (434444434).

The spelling of 123123113 in words is "one hundred twenty-three million, one hundred twenty-three thousand, one hundred thirteen".