12002020031077 has 2 divisors, whose sum is σ = 12002020031078. Its totient is φ = 12002020031076.

The previous prime is 12002020031021. The next prime is 12002020031227. The reversal of 12002020031077 is 77013002020021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11919279809761 + 82740221316 = 3452431^2 + 287646^2 .

It is a cyclic number.

It is not a de Polignac number, because 12002020031077 - 2²³ = 12002011642469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12002020031977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001010015538 + 6001010015539.

It is an arithmetic number, because the mean of its divisors is an integer number (6001010015539).

Almost surely, 2^{12002020031077} is an apocalyptic number.

It is an amenable number.

12002020031077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002020031077 is an equidigital number, since it uses as much as digits as its factorization.

12002020031077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 25.

Adding to 12002020031077 its reverse (77013002020021), we get a palindrome (89015022051098).

The spelling of 12002020031077 in words is "twelve trillion, two billion, twenty million, thirty-one thousand, seventy-seven".