313103321331 has 4 divisors (see below), whose sum is σ = 417471095112. Its totient is φ = 208735547552.

The previous prime is 313103321281. The next prime is 313103321351. The reversal of 313103321331 is 133123301313.

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 313103321331 - 2⁹ = 313103320819 is a prime.

It is a super-2 number, since 2×313103321331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (313103321351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52183886886 + ... + 52183886891.

It is an arithmetic number, because the mean of its divisors is an integer number (104367773778).

Almost surely, 2^313103321331 is an apocalyptic number.

313103321331 is a deficient number, since it is larger than the sum of its proper divisors (104367773781).

313103321331 is a wasteful number, since it uses less digits than its factorization.

313103321331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104367773780.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 313103321331 its reverse (133123301313), we get a palindrome (446226622644).

The spelling of 313103321331 in words is "three hundred thirteen billion, one hundred three million, three hundred twenty-one thousand, three hundred thirty-one".