312313103 has 4 divisors (see below), whose sum is σ = 330684480. Its totient is φ = 293941728.

The previous prime is 312313097. The next prime is 312313121. The reversal of 312313103 is 301313213.

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 312313103 - 2⁴ = 312313087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 18371359 = 312313103 / (3 + 1 + 2 + 3 + 1 + 3 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312313303) 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, 9185663 + ... + 9185696.

It is an arithmetic number, because the mean of its divisors is an integer number (82671120).

Almost surely, 2^312313103 is an apocalyptic number.

312313103 is a deficient number, since it is larger than the sum of its proper divisors (18371377).

312313103 is a wasteful number, since it uses less digits than its factorization.

312313103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18371376.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 312313103 is about 17672.3824935972. The cubic root of 312313103 is about 678.4690927674.

Adding to 312313103 its reverse (301313213), we get a palindrome (613626316).

The spelling of 312313103 in words is "three hundred twelve million, three hundred thirteen thousand, one hundred three".