312202313331133 has 4 divisors (see below), whose sum is σ = 312202461044188. Its totient is φ = 312202165618080.

The previous prime is 312202313331119. The next prime is 312202313331163. The reversal of 312202313331133 is 331133313202213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86447541412089 + 225754771919044 = 9297717^2 + 15025138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312202313331133 is a prime.

It is a super-2 number, since 2×312202313331133² (a number of 30 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 = 312202313331095 and 312202313331104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312202313331163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70639458 + ... + 74928883.

It is an arithmetic number, because the mean of its divisors is an integer number (78050615261047).

Almost surely, 2^{312202313331133} is an apocalyptic number.

It is an amenable number.

312202313331133 is a deficient number, since it is larger than the sum of its proper divisors (147713055).

312202313331133 is a wasteful number, since it uses less digits than its factorization.

312202313331133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147713054.

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 312202313331133 its reverse (331133313202213), we get a palindrome (643335626533346).

The spelling of 312202313331133 in words is "three hundred twelve trillion, two hundred two billion, three hundred thirteen million, three hundred thirty-one thousand, one hundred thirty-three".