123312013 has 8 divisors (see below), whose sum is σ = 134827200. Its totient is φ = 111847680.

The previous prime is 123312001. The next prime is 123312023. The reversal of 123312013 is 310213321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123312013 - 2¹³ = 123303821 is a prime.

It is a super-2 number, since 2×123312013² = 30411705100224338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123312023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7545 + ... + 17422.

It is an arithmetic number, because the mean of its divisors is an integer number (16853400).

Almost surely, 2^123312013 is an apocalyptic number.

It is an amenable number.

123312013 is a deficient number, since it is larger than the sum of its proper divisors (11515187).

123312013 is a wasteful number, since it uses less digits than its factorization.

123312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25427.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 123312013 is about 11104.5942294169. The cubic root of 123312013 is about 497.7391431275.

Adding to 123312013 its reverse (310213321), we get a palindrome (433525334).

The spelling of 123312013 in words is "one hundred twenty-three million, three hundred twelve thousand, thirteen".