313203133231 has 4 divisors (see below), whose sum is σ = 314933537464. Its totient is φ = 311472729000.

The previous prime is 313203133207. The next prime is 313203133241. The reversal of 313203133231 is 132331302313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132331302313 = 7 ⋅18904471759.

It is a cyclic number.

It is not a de Polignac number, because 313203133231 - 2²³ = 313194744623 is a prime.

It is a super-2 number, since 2×313203133231² (a number of 24 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 = 313203133196 and 313203133205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313203133241) 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, 865201845 + ... + 865202206.

It is an arithmetic number, because the mean of its divisors is an integer number (78733384366).

Almost surely, 2^313203133231 is an apocalyptic number.

313203133231 is a deficient number, since it is larger than the sum of its proper divisors (1730404233).

313203133231 is a wasteful number, since it uses less digits than its factorization.

313203133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730404232.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 313203133231 its reverse (132331302313), we get a palindrome (445534435544).

The spelling of 313203133231 in words is "three hundred thirteen billion, two hundred three million, one hundred thirty-three thousand, two hundred thirty-one".