313221330331 has 8 divisors (see below), whose sum is σ = 385503175904. Its totient is φ = 247823470080.

The previous prime is 313221330319. The next prime is 313221330337. The reversal of 313221330331 is 133033122313.

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 313221330331 - 2⁷ = 313221330203 is a prime.

It is a super-2 number, since 2×313221330331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313221330296 and 313221330305.

It is not an unprimeable number, because it can be changed into a prime (313221330337) 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, 1720996230 + ... + 1720996411.

It is an arithmetic number, because the mean of its divisors is an integer number (48187896988).

Almost surely, 2^313221330331 is an apocalyptic number.

313221330331 is a deficient number, since it is larger than the sum of its proper divisors (72281845573).

313221330331 is a wasteful number, since it uses less digits than its factorization.

313221330331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441992661.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 313221330331 its reverse (133033122313), we get a palindrome (446254452644).

The spelling of 313221330331 in words is "three hundred thirteen billion, two hundred twenty-one million, three hundred thirty thousand, three hundred thirty-one".