20133331221323 has 2 divisors, whose sum is σ = 20133331221324. Its totient is φ = 20133331221322.

The previous prime is 20133331221239. The next prime is 20133331221329. The reversal of 20133331221323 is 32312213333102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20133331221323 - 2⁸ = 20133331221067 is a prime.

It is not a weakly prime, because it can be changed into another prime (20133331221329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066665610661 + 10066665610662.

It is an arithmetic number, because the mean of its divisors is an integer number (10066665610662).

Almost surely, 2^{20133331221323} is an apocalyptic number.

20133331221323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133331221323 is an equidigital number, since it uses as much as digits as its factorization.

20133331221323 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 29.

Adding to 20133331221323 its reverse (32312213333102), we get a palindrome (52445544554425).

The spelling of 20133331221323 in words is "twenty trillion, one hundred thirty-three billion, three hundred thirty-one million, two hundred twenty-one thousand, three hundred twenty-three".