313131010331323 has 4 divisors (see below), whose sum is σ = 314018067018168. Its totient is φ = 312243953644480.

The previous prime is 313131010331263. The next prime is 313131010331341. The reversal of 313131010331323 is 323133010131313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313131010331323 - 2²⁹ = 313130473460411 is a prime.

It is a super-2 number, since 2×313131010331323² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313131010331291 and 313131010331300.

It is not an unprimeable number, because it can be changed into a prime (313131010338323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443528342893 + ... + 443528343598.

It is an arithmetic number, because the mean of its divisors is an integer number (78504516754542).

Almost surely, 2^{313131010331323} is an apocalyptic number.

313131010331323 is a deficient number, since it is larger than the sum of its proper divisors (887056686845).

313131010331323 is an equidigital number, since it uses as much as digits as its factorization.

313131010331323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887056686844.

The product of its (nonzero) digits is 4374, while the sum is 28.

Adding to 313131010331323 its reverse (323133010131313), we get a palindrome (636264020462636).

The spelling of 313131010331323 in words is "three hundred thirteen trillion, one hundred thirty-one billion, ten million, three hundred thirty-one thousand, three hundred twenty-three".