212310031033 has 4 divisors (see below), whose sum is σ = 213001594960. Its totient is φ = 211618467108.

The previous prime is 212310031019. The next prime is 212310031051. The reversal of 212310031033 is 330130013212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212310031033 is a prime.

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 212310031033.

It is not an unprimeable number, because it can be changed into a prime (212310031433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345781503 + ... + 345782116.

It is an arithmetic number, because the mean of its divisors is an integer number (53250398740).

Almost surely, 2^212310031033 is an apocalyptic number.

It is an amenable number.

212310031033 is a deficient number, since it is larger than the sum of its proper divisors (691563927).

212310031033 is an equidigital number, since it uses as much as digits as its factorization.

212310031033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691563926.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 212310031033 its reverse (330130013212), we get a palindrome (542440044245).

The spelling of 212310031033 in words is "two hundred twelve billion, three hundred ten million, thirty-one thousand, thirty-three".