20001312033 has 4 divisors (see below), whose sum is σ = 26668416048. Its totient is φ = 13334208020.

The previous prime is 20001311983. The next prime is 20001312047. The reversal of 20001312033 is 33021310002.

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 not a de Polignac number, because 20001312033 - 2¹⁰ = 20001311009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20001317033) 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, 3333552003 + ... + 3333552008.

It is an arithmetic number, because the mean of its divisors is an integer number (6667104012).

Almost surely, 2^20001312033 is an apocalyptic number.

It is an amenable number.

20001312033 is a deficient number, since it is larger than the sum of its proper divisors (6667104015).

20001312033 is an equidigital number, since it uses as much as digits as its factorization.

20001312033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667104014.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20001312033 its reverse (33021310002), we get a palindrome (53022622035).

The spelling of 20001312033 in words is "twenty billion, one million, three hundred twelve thousand, thirty-three".