313111045 has 8 divisors (see below), whose sum is σ = 404635896. Its totient is φ = 231220416.

The previous prime is 313111037. The next prime is 313111061. The reversal of 313111045 is 540111313.

It can be written as a sum of positive squares in 4 ways, for example, as 4124961 + 308986084 = 2031^2 + 17578^2 .

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 313111045 - 2³ = 313111037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2408482 + ... + 2408611.

It is an arithmetic number, because the mean of its divisors is an integer number (50579487).

Almost surely, 2^313111045 is an apocalyptic number.

It is an amenable number.

313111045 is a deficient number, since it is larger than the sum of its proper divisors (91524851).

313111045 is a wasteful number, since it uses less digits than its factorization.

313111045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817111.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 313111045 is about 17694.9440519036. The cubic root of 313111045 is about 679.0464178608.

Adding to 313111045 its reverse (540111313), we get a palindrome (853222358).

The spelling of 313111045 in words is "three hundred thirteen million, one hundred eleven thousand, forty-five".