313233121020231 has 20 divisors (see below), whose sum is σ = 478797914536392. Its totient is φ = 203965753220208.

The previous prime is 313233121020223. The next prime is 313233121020361. The reversal of 313233121020231 is 132020121332313.

313233121020231 is a `hidden beast` number, since 3 + 1 + 323 + 3 + 1 + 2 + 102 + 0 + 231 = 666.

It is not a de Polignac number, because 313233121020231 - 2³ = 313233121020223 is a prime.

It is a super-3 number, since 3×313233121020231³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 313233121020195 and 313233121020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313233121000231) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 44965991496 + ... + 44965998461.

Almost surely, 2^{313233121020231} is an apocalyptic number.

313233121020231 is a deficient number, since it is larger than the sum of its proper divisors (165564793516161).

313233121020231 is an equidigital number, since it uses as much as digits as its factorization.

313233121020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89931990012 (or 89931990003 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 313233121020231 its reverse (132020121332313), we get a palindrome (445253242352544).

The spelling of 313233121020231 in words is "three hundred thirteen trillion, two hundred thirty-three billion, one hundred twenty-one million, twenty thousand, two hundred thirty-one".