123310319 has 4 divisors (see below), whose sum is σ = 134520360. Its totient is φ = 112100280.

The previous prime is 123310249. The next prime is 123310321. The reversal of 123310319 is 913013321.

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

It is a cyclic number.

It is not a de Polignac number, because 123310319 - 2¹² = 123306223 is a prime.

It is a super-2 number, since 2×123310319² = 30410869543763522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123310294 and 123310303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123310339) 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, 5605004 + ... + 5605025.

It is an arithmetic number, because the mean of its divisors is an integer number (33630090).

Almost surely, 2^123310319 is an apocalyptic number.

123310319 is a deficient number, since it is larger than the sum of its proper divisors (11210041).

123310319 is a wasteful number, since it uses less digits than its factorization.

123310319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11210040.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 123310319 is about 11104.5179544184. The cubic root of 123310319 is about 497.7368638849.

The spelling of 123310319 in words is "one hundred twenty-three million, three hundred ten thousand, three hundred nineteen".