313221022331 has 8 divisors (see below), whose sum is σ = 362279737344. Its totient is φ = 265240521000.

The previous prime is 313221022319. The next prime is 313221022339. The reversal of 313221022331 is 133220122313.

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

It is not a de Polignac number, because 313221022331 - 2¹⁰ = 313221021307 is a prime.

It is a super-2 number, since 2×313221022331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313221022297 and 313221022306.

It is not an unprimeable number, because it can be changed into a prime (313221022339) 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, 269552795 + ... + 269553956.

It is an arithmetic number, because the mean of its divisors is an integer number (45284967168).

Almost surely, 2^313221022331 is an apocalyptic number.

313221022331 is a deficient number, since it is larger than the sum of its proper divisors (49058715013).

313221022331 is an equidigital number, since it uses as much as digits as its factorization.

313221022331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539106841.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 313221022331 its reverse (133220122313), we get a palindrome (446441144644).

The spelling of 313221022331 in words is "three hundred thirteen billion, two hundred twenty-one million, twenty-two thousand, three hundred thirty-one".