313213102321 has 12 divisors (see below), whose sum is σ = 364455771300. Its totient is φ = 268390389120.

The previous prime is 313213102309. The next prime is 313213102327. The reversal of 313213102321 is 123201312313.

It can be written as a sum of positive squares in 2 ways, for example, as 153883598400 + 159329503921 = 392280^2 + 399161^2 .

It is not a de Polignac number, because 313213102321 - 2⁵ = 313213102289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313213102292 and 313213102301.

It is not an unprimeable number, because it can be changed into a prime (313213102327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 757660 + ... + 1095661.

It is an arithmetic number, because the mean of its divisors is an integer number (30371314275).

Almost surely, 2^313213102321 is an apocalyptic number.

It is an amenable number.

313213102321 is a deficient number, since it is larger than the sum of its proper divisors (51242668979).

313213102321 is a wasteful number, since it uses less digits than its factorization.

313213102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856784 (or 1856777 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 313213102321 its reverse (123201312313), we get a palindrome (436414414634).

The spelling of 313213102321 in words is "three hundred thirteen billion, two hundred thirteen million, one hundred two thousand, three hundred twenty-one".