20332233131989 has 2 divisors, whose sum is σ = 20332233131990. Its totient is φ = 20332233131988.

The previous prime is 20332233131963. The next prime is 20332233132091. The reversal of 20332233131989 is 98913133223302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17707752131364 + 2624481000625 = 4208058^2 + 1620025^2 .

It is a cyclic number.

It is not a de Polignac number, because 20332233131989 - 2⁵ = 20332233131957 is a prime.

It is a super-2 number, since 2×20332233131989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20332233131939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166116565994 + 10166116565995.

It is an arithmetic number, because the mean of its divisors is an integer number (10166116565995).

Almost surely, 2^{20332233131989} is an apocalyptic number.

It is an amenable number.

20332233131989 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332233131989 is an equidigital number, since it uses as much as digits as its factorization.

20332233131989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 49.

The spelling of 20332233131989 in words is "twenty trillion, three hundred thirty-two billion, two hundred thirty-three million, one hundred thirty-one thousand, nine hundred eighty-nine".