20331212033233 has 2 divisors, whose sum is σ = 20331212033234. Its totient is φ = 20331212033232.

The previous prime is 20331212033219. The next prime is 20331212033239. The reversal of 20331212033233 is 33233021213302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13368880697104 + 6962331336129 = 3656348^2 + 2638623^2 .

It is a cyclic number.

It is not a de Polignac number, because 20331212033233 - 2³³ = 20322622098641 is a prime.

It is not a weakly prime, because it can be changed into another prime (20331212033239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165606016616 + 10165606016617.

It is an arithmetic number, because the mean of its divisors is an integer number (10165606016617).

Almost surely, 2^{20331212033233} is an apocalyptic number.

It is an amenable number.

20331212033233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331212033233 is an equidigital number, since it uses as much as digits as its factorization.

20331212033233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 20331212033233 its reverse (33233021213302), we get a palindrome (53564233246535).

The spelling of 20331212033233 in words is "twenty trillion, three hundred thirty-one billion, two hundred twelve million, thirty-three thousand, two hundred thirty-three".