2121012304847 has 2 divisors, whose sum is σ = 2121012304848. Its totient is φ = 2121012304846.

The previous prime is 2121012304793. The next prime is 2121012304867. The reversal of 2121012304847 is 7484032101212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121012304847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121012304867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060506152423 + 1060506152424.

It is an arithmetic number, because the mean of its divisors is an integer number (1060506152424).

Almost surely, 2^{2121012304847} is an apocalyptic number.

2121012304847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121012304847 is an equidigital number, since it uses as much as digits as its factorization.

2121012304847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The spelling of 2121012304847 in words is "two trillion, one hundred twenty-one billion, twelve million, three hundred four thousand, eight hundred forty-seven".