20331321332279 has 2 divisors, whose sum is σ = 20331321332280. Its totient is φ = 20331321332278.

The previous prime is 20331321332269. The next prime is 20331321332359. The reversal of 20331321332279 is 97223312313302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20331321332279 - 2³⁶ = 20262601855543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20331321332209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165660666139 + 10165660666140.

It is an arithmetic number, because the mean of its divisors is an integer number (10165660666140).

Almost surely, 2^{20331321332279} is an apocalyptic number.

20331321332279 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331321332279 is an equidigital number, since it uses as much as digits as its factorization.

20331321332279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 41.

The spelling of 20331321332279 in words is "twenty trillion, three hundred thirty-one billion, three hundred twenty-one million, three hundred thirty-two thousand, two hundred seventy-nine".