123313115 has 4 divisors (see below), whose sum is σ = 147975744. Its totient is φ = 98650488.

The previous prime is 123313109. The next prime is 123313129. The reversal of 123313115 is 511313321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123313115 is a prime.

It is a super-2 number, since 2×123313115² = 30412248662006450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12331307 + ... + 12331316.

It is an arithmetic number, because the mean of its divisors is an integer number (36993936).

Almost surely, 2^123313115 is an apocalyptic number.

123313115 is a deficient number, since it is larger than the sum of its proper divisors (24662629).

123313115 is an equidigital number, since it uses as much as digits as its factorization.

123313115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24662628.

The product of its digits is 270, while the sum is 20.

The square root of 123313115 is about 11104.6438484086. The cubic root of 123313115 is about 497.7406258349.

Adding to 123313115 its reverse (511313321), we get a palindrome (634626436).

The spelling of 123313115 in words is "one hundred twenty-three million, three hundred thirteen thousand, one hundred fifteen".