31212333002313 has 10 divisors (see below), whose sum is σ = 46625830781354. Its totient is φ = 20808222001488.

The previous prime is 31212333002293. The next prime is 31212333002339. The reversal of 31212333002313 is 31320033321213.

31212333002313 is a `hidden beast` number, since 3 + 1 + 2 + 12 + 3 + 330 + 0 + 2 + 313 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29292634079289 + 1919698923024 = 5412267^2 + 1385532^2 .

It is not a de Polignac number, because 31212333002313 - 2¹³ = 31212332994121 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31212333012313) 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 9 ways as a sum of consecutive naturals, for example, 192668722156 + ... + 192668722317.

Almost surely, 2^{31212333002313} is an apocalyptic number.

It is an amenable number.

31212333002313 is a deficient number, since it is larger than the sum of its proper divisors (15413497779041).

31212333002313 is an equidigital number, since it uses as much as digits as its factorization.

31212333002313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385337444485 (or 385337444476 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 31212333002313 its reverse (31320033321213), we get a palindrome (62532366323526).

The spelling of 31212333002313 in words is "thirty-one trillion, two hundred twelve billion, three hundred thirty-three million, two thousand, three hundred thirteen".