12020301109 has 2 divisors, whose sum is σ = 12020301110. Its totient is φ = 12020301108.

The previous prime is 12020301091. The next prime is 12020301149. The reversal of 12020301109 is 90110302021.

Together with previous prime (12020301091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9624198609 + 2396102500 = 98103^2 + 48950^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020301109 - 2⁹ = 12020300597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12020301149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010150554 + 6010150555.

It is an arithmetic number, because the mean of its divisors is an integer number (6010150555).

Almost surely, 2^12020301109 is an apocalyptic number.

It is an amenable number.

12020301109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020301109 is an equidigital number, since it uses as much as digits as its factorization.

12020301109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 12020301109 in words is "twelve billion, twenty million, three hundred one thousand, one hundred nine".