313021313231 has 8 divisors (see below), whose sum is σ = 341570810064. Its totient is φ = 284487318720.

The previous prime is 313021313219. The next prime is 313021313251. The reversal of 313021313231 is 132313120313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313021313231 - 2¹⁸ = 313021051087 is a prime.

It is a super-2 number, since 2×313021313231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313021313197 and 313021313206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313021313251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3833336 + ... + 3914141.

It is an arithmetic number, because the mean of its divisors is an integer number (42696351258).

Almost surely, 2^313021313231 is an apocalyptic number.

313021313231 is a deficient number, since it is larger than the sum of its proper divisors (28549496833).

313021313231 is a wasteful number, since it uses less digits than its factorization.

313021313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7751161.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 313021313231 its reverse (132313120313), we get a palindrome (445334433544).

The spelling of 313021313231 in words is "three hundred thirteen billion, twenty-one million, three hundred thirteen thousand, two hundred thirty-one".