20312120000033 has 4 divisors (see below), whose sum is σ = 20312129043648. Its totient is φ = 20312110956420.

The previous prime is 20312120000017. The next prime is 20312120000069. The reversal of 20312120000033 is 33000002121302.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20312120000033 - 2⁴ = 20312120000017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20312119999966 and 20312120000020.

It is not an unprimeable number, because it can be changed into a prime (20312120002033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710548 + ... + 6599258.

It is an arithmetic number, because the mean of its divisors is an integer number (5078032260912).

Almost surely, 2^{20312120000033} is an apocalyptic number.

It is an amenable number.

20312120000033 is a deficient number, since it is larger than the sum of its proper divisors (9043615).

20312120000033 is an equidigital number, since it uses as much as digits as its factorization.

20312120000033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9043614.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20312120000033 its reverse (33000002121302), we get a palindrome (53312122121335).

The spelling of 20312120000033 in words is "twenty trillion, three hundred twelve billion, one hundred twenty million, thirty-three", and thus it is an aban number.