12020021963 has 2 divisors, whose sum is σ = 12020021964. Its totient is φ = 12020021962.

The previous prime is 12020021953. The next prime is 12020022031. The reversal of 12020021963 is 36912002021.

It is a weak prime.

It is an emirp because it is prime and its reverse (36912002021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12020021963 - 2²⁶ = 11952913099 is a prime.

It is not a weakly prime, because it can be changed into another prime (12020021953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010010981 + 6010010982.

It is an arithmetic number, because the mean of its divisors is an integer number (6010010982).

Almost surely, 2^12020021963 is an apocalyptic number.

12020021963 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020021963 is an equidigital number, since it uses as much as digits as its factorization.

12020021963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 12020021963 its reverse (36912002021), we get a palindrome (48932023984).

The spelling of 12020021963 in words is "twelve billion, twenty million, twenty-one thousand, nine hundred sixty-three".