313231420 has 12 divisors (see below), whose sum is σ = 657786024. Its totient is φ = 125292560.

The previous prime is 313231417. The next prime is 313231433. The reversal of 313231420 is 24132313.

It is a super-3 number, since 3×313231420³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7830766 + ... + 7830805.

It is an arithmetic number, because the mean of its divisors is an integer number (54815502).

Almost surely, 2^313231420 is an apocalyptic number.

It is an amenable number.

313231420 is an abundant number, since it is smaller than the sum of its proper divisors (344554604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313231420 is a wasteful number, since it uses less digits than its factorization.

313231420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15661580 (or 15661578 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 313231420 is about 17698.3451203778. The cubic root of 313231420 is about 679.1334261189.

Adding to 313231420 its reverse (24132313), we get a palindrome (337363733).

The spelling of 313231420 in words is "three hundred thirteen million, two hundred thirty-one thousand, four hundred twenty".