12020102001961 has 2 divisors, whose sum is σ = 12020102001962. Its totient is φ = 12020102001960.

The previous prime is 12020102001923. The next prime is 12020102002091. The reversal of 12020102001961 is 16910020102021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8982872156736 + 3037229845225 = 2997144^2 + 1742765^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020102001961 - 2⁷ = 12020102001833 is a prime.

It is not a weakly prime, because it can be changed into another prime (12020102004961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010051000980 + 6010051000981.

It is an arithmetic number, because the mean of its divisors is an integer number (6010051000981).

Almost surely, 2^{12020102001961} is an apocalyptic number.

It is an amenable number.

12020102001961 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020102001961 is an equidigital number, since it uses as much as digits as its factorization.

12020102001961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 12020102001961 its reverse (16910020102021), we get a palindrome (28930122103982).

The spelling of 12020102001961 in words is "twelve trillion, twenty billion, one hundred two million, one thousand, nine hundred sixty-one".