20033122091977 has 2 divisors, whose sum is σ = 20033122091978. Its totient is φ = 20033122091976.

The previous prime is 20033122091951. The next prime is 20033122092001. The reversal of 20033122091977 is 77919022133002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10057498878736 + 9975623213241 = 3171356^2 + 3158421^2 .

It is a cyclic number.

It is not a de Polignac number, because 20033122091977 - 2¹⁹ = 20033121567689 is a prime.

It is not a weakly prime, because it can be changed into another prime (20033122091947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016561045988 + 10016561045989.

It is an arithmetic number, because the mean of its divisors is an integer number (10016561045989).

Almost surely, 2^{20033122091977} is an apocalyptic number.

It is an amenable number.

20033122091977 is a deficient number, since it is larger than the sum of its proper divisors (1).

20033122091977 is an equidigital number, since it uses as much as digits as its factorization.

20033122091977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 46.

The spelling of 20033122091977 in words is "twenty trillion, thirty-three billion, one hundred twenty-two million, ninety-one thousand, nine hundred seventy-seven".