20012020333 has 4 divisors (see below), whose sum is σ = 20657569408. Its totient is φ = 19366471260.

The previous prime is 20012020307. The next prime is 20012020361. The reversal of 20012020333 is 33302021002.

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 20012020333 - 2²¹ = 20009923181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012020933) 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, 322774491 + ... + 322774552.

It is an arithmetic number, because the mean of its divisors is an integer number (5164392352).

Almost surely, 2^20012020333 is an apocalyptic number.

It is an amenable number.

20012020333 is a deficient number, since it is larger than the sum of its proper divisors (645549075).

20012020333 is an equidigital number, since it uses as much as digits as its factorization.

20012020333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645549074.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20012020333 its reverse (33302021002), we get a palindrome (53314041335).

The spelling of 20012020333 in words is "twenty billion, twelve million, twenty thousand, three hundred thirty-three".