313131010123321 has 8 divisors (see below), whose sum is σ = 337277600663360. Its totient is φ = 288992932406352.

The previous prime is 313131010123319. The next prime is 313131010123331. The reversal of 313131010123321 is 123321010131313.

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 313131010123321 - 2¹ = 313131010123319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313131010123331) 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, 2128129365 + ... + 2128276498.

It is an arithmetic number, because the mean of its divisors is an integer number (42159700082920).

Almost surely, 2^{313131010123321} is an apocalyptic number.

It is an amenable number.

313131010123321 is a deficient number, since it is larger than the sum of its proper divisors (24146590540039).

313131010123321 is a wasteful number, since it uses less digits than its factorization.

313131010123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256411535.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 313131010123321 its reverse (123321010131313), we get a palindrome (436452020254634).

The spelling of 313131010123321 in words is "three hundred thirteen trillion, one hundred thirty-one billion, ten million, one hundred twenty-three thousand, three hundred twenty-one".