2112342442289 has 2 divisors, whose sum is σ = 2112342442290. Its totient is φ = 2112342442288.

The previous prime is 2112342442279. The next prime is 2112342442337. The reversal of 2112342442289 is 9822442432112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1182645375025 + 929697067264 = 1087495^2 + 964208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112342442289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2112342442229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056171221144 + 1056171221145.

It is an arithmetic number, because the mean of its divisors is an integer number (1056171221145).

Almost surely, 2^{2112342442289} is an apocalyptic number.

It is an amenable number.

2112342442289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112342442289 is an equidigital number, since it uses as much as digits as its factorization.

2112342442289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 44.

The spelling of 2112342442289 in words is "two trillion, one hundred twelve billion, three hundred forty-two million, four hundred forty-two thousand, two hundred eighty-nine".