313113251 has 8 divisors (see below), whose sum is σ = 341770800. Its totient is φ = 284487840.

The previous prime is 313113247. The next prime is 313113287. The reversal of 313113251 is 152311313.

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 313113251 - 2² = 313113247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313113211) 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, 15305 + ... + 29333.

It is an arithmetic number, because the mean of its divisors is an integer number (42721350).

Almost surely, 2^313113251 is an apocalyptic number.

313113251 is a deficient number, since it is larger than the sum of its proper divisors (28657549).

313113251 is a wasteful number, since it uses less digits than its factorization.

313113251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16069.

The product of its digits is 270, while the sum is 20.

The square root of 313113251 is about 17695.0063859836. The cubic root of 313113251 is about 679.0480125804.

Adding to 313113251 its reverse (152311313), we get a palindrome (465424564).

The spelling of 313113251 in words is "three hundred thirteen million, one hundred thirteen thousand, two hundred fifty-one".