1202100112309 has 2 divisors, whose sum is σ = 1202100112310. Its totient is φ = 1202100112308.

The previous prime is 1202100112277. The next prime is 1202100112351. The reversal of 1202100112309 is 9032110012021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1111527404100 + 90572708209 = 1054290^2 + 300953^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202100112309 - 2⁵ = 1202100112277 is a prime.

It is a super-2 number, since 2×1202100112309² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1202100112309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202100112009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601050056154 + 601050056155.

It is an arithmetic number, because the mean of its divisors is an integer number (601050056155).

Almost surely, 2^{1202100112309} is an apocalyptic number.

It is an amenable number.

1202100112309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202100112309 is an equidigital number, since it uses as much as digits as its factorization.

1202100112309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 1202100112309 in words is "one trillion, two hundred two billion, one hundred million, one hundred twelve thousand, three hundred nine".