312613123 has 8 divisors (see below), whose sum is σ = 316828800. Its totient is φ = 308413248.

The previous prime is 312613087. The next prime is 312613163. The reversal of 312613123 is 321316213.

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 312613123 - 2²¹ = 310515971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312613094 and 312613103.

It is not an unprimeable number, because it can be changed into a prime (312613163) 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, 38965 + ... + 46297.

It is an arithmetic number, because the mean of its divisors is an integer number (39603600).

Almost surely, 2^312613123 is an apocalyptic number.

312613123 is a deficient number, since it is larger than the sum of its proper divisors (4215677).

312613123 is an equidigital number, since it uses as much as digits as its factorization.

312613123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7901.

The product of its digits is 648, while the sum is 22.

The square root of 312613123 is about 17680.8688417736. The cubic root of 312613123 is about 678.6862777540.

Adding to 312613123 its reverse (321316213), we get a palindrome (633929336).

The spelling of 312613123 in words is "three hundred twelve million, six hundred thirteen thousand, one hundred twenty-three".