313001220231 has 24 divisors (see below), whose sum is σ = 516728085120. Its totient is φ = 178848266256.

The previous prime is 313001220229. The next prime is 313001220241. The reversal of 313001220231 is 132022100313.

313001220231 is a `hidden beast` number, since 313 + 0 + 0 + 122 + 0 + 231 = 666.

It is not a de Polignac number, because 313001220231 - 2¹ = 313001220229 is a prime.

It is a super-2 number, since 2×313001220231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313001220241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1150936 + ... + 1396658.

It is an arithmetic number, because the mean of its divisors is an integer number (21530336880).

Almost surely, 2^313001220231 is an apocalyptic number.

313001220231 is a deficient number, since it is larger than the sum of its proper divisors (203726864889).

313001220231 is a wasteful number, since it uses less digits than its factorization.

313001220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265955 (or 265952 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 313001220231 its reverse (132022100313), we get a palindrome (445023320544).

The spelling of 313001220231 in words is "three hundred thirteen billion, one million, two hundred twenty thousand, two hundred thirty-one".