20333333333333 has 4 divisors (see below), whose sum is σ = 20333414958528. Its totient is φ = 20333251708140.

The previous prime is 20333333333213. The next prime is 20333333333377. The reversal of 20333333333333 is 33333333333302.

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 20333333333333 - 2²⁰ = 20333332284757 is a prime.

It is a Duffinian number.

20333333333333 is a modest number, since divided by 3333333 gives 2033333 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333338333333) 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, 40437791 + ... + 40937532.

It is an arithmetic number, because the mean of its divisors is an integer number (5083353739632).

Almost surely, 2^{20333333333333} is an apocalyptic number.

It is an amenable number.

20333333333333 is a deficient number, since it is larger than the sum of its proper divisors (81625195).

20333333333333 is an equidigital number, since it uses as much as digits as its factorization.

20333333333333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81625194.

The product of its (nonzero) digits is 1062882, while the sum is 38.

Adding to 20333333333333 its reverse (33333333333302), we get a palindrome (53666666666635).

The spelling of 20333333333333 in words is "twenty trillion, three hundred thirty-three billion, three hundred thirty-three million, three hundred thirty-three thousand, three hundred thirty-three".