12002020031977 has 2 divisors, whose sum is σ = 12002020031978. Its totient is φ = 12002020031976.

The previous prime is 12002020031927. The next prime is 12002020031993. The reversal of 12002020031977 is 77913002020021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11898939866256 + 103080165721 = 3449484^2 + 321061^2 .

It is a cyclic number.

It is not a de Polignac number, because 12002020031977 - 2¹⁹ = 12002019507689 is a prime.

It is not a weakly prime, because it can be changed into another prime (12002020031927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001010015988 + 6001010015989.

It is an arithmetic number, because the mean of its divisors is an integer number (6001010015989).

Almost surely, 2^{12002020031977} is an apocalyptic number.

It is an amenable number.

12002020031977 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002020031977 is an equidigital number, since it uses as much as digits as its factorization.

12002020031977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

Adding to 12002020031977 its reverse (77913002020021), we get a palindrome (89915022051998).

The spelling of 12002020031977 in words is "twelve trillion, two billion, twenty million, thirty-one thousand, nine hundred seventy-seven".