20112000121049 has 2 divisors, whose sum is σ = 20112000121050. Its totient is φ = 20112000121048.

The previous prime is 20112000121013. The next prime is 20112000121051. The reversal of 20112000121049 is 94012100021102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17793211240000 + 2318788881049 = 4218200^2 + 1522757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112000121049 is a prime.

Together with 20112000121051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20112000121349) 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, 10056000060524 + 10056000060525.

It is an arithmetic number, because the mean of its divisors is an integer number (10056000060525).

Almost surely, 2^{20112000121049} is an apocalyptic number.

It is an amenable number.

20112000121049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112000121049 is an equidigital number, since it uses as much as digits as its factorization.

20112000121049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 20112000121049 in words is "twenty trillion, one hundred twelve billion, one hundred twenty-one thousand, forty-nine".