313311431 has 8 divisors (see below), whose sum is σ = 314755920. Its totient is φ = 311871168.

The previous prime is 313311419. The next prime is 313311437. The reversal of 313311431 is 134113313.

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 313311431 - 2¹⁰ = 313310407 is a prime.

It is a super-2 number, since 2×313311431² = 196328105590535522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313311437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377525 + ... + 378353.

It is an arithmetic number, because the mean of its divisors is an integer number (39344490).

Almost surely, 2^313311431 is an apocalyptic number.

313311431 is a deficient number, since it is larger than the sum of its proper divisors (1444489).

313311431 is an equidigital number, since it uses as much as digits as its factorization.

313311431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113.

The product of its digits is 324, while the sum is 20.

The square root of 313311431 is about 17700.6053851274. The cubic root of 313311431 is about 679.1912465408.

Adding to 313311431 its reverse (134113313), we get a palindrome (447424744).

The spelling of 313311431 in words is "three hundred thirteen million, three hundred eleven thousand, four hundred thirty-one".