312002211133 has 6 divisors (see below), whose sum is σ = 329287652574. Its totient is φ = 295581041784.

The previous prime is 312002211119. The next prime is 312002211137. The reversal of 312002211133 is 331112200213.

It can be written as a sum of positive squares in only one way, i.e., 245408279769 + 66593931364 = 495387^2 + 258058^2 .

It is a de Polignac number, because none of the positive numbers 2^k-312002211133 is a prime.

It is a super-2 number, since 2×312002211133² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312002211133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312002211137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 432135666 + ... + 432136387.

It is an arithmetic number, because the mean of its divisors is an integer number (54881275429).

Almost surely, 2^312002211133 is an apocalyptic number.

It is an amenable number.

312002211133 is a deficient number, since it is larger than the sum of its proper divisors (17285441441).

312002211133 is an equidigital number, since it uses as much as digits as its factorization.

312002211133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864272091 (or 864272072 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312002211133 its reverse (331112200213), we get a palindrome (643114411346).

The spelling of 312002211133 in words is "three hundred twelve billion, two million, two hundred eleven thousand, one hundred thirty-three".