313123042015 has 16 divisors (see below), whose sum is σ = 448096578048. Its totient is φ = 205377597216.

The previous prime is 313123041983. The next prime is 313123042019. The reversal of 313123042015 is 510240321313.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 313123042015 - 2⁵ = 313123041983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313123042019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194485557 + ... + 194487166.

It is an arithmetic number, because the mean of its divisors is an integer number (28006036128).

Almost surely, 2^313123042015 is an apocalyptic number.

313123042015 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

313123042015 is a deficient number, since it is larger than the sum of its proper divisors (134973536033).

313123042015 is a wasteful number, since it uses less digits than its factorization.

313123042015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388972758.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 313123042015 its reverse (510240321313), we get a palindrome (823363363328).

The spelling of 313123042015 in words is "three hundred thirteen billion, one hundred twenty-three million, forty-two thousand, fifteen".