1870112243 has 2 divisors, whose sum is σ = 1870112244. Its totient is φ = 1870112242.

The previous prime is 1870112191. The next prime is 1870112249. The reversal of 1870112243 is 3422110781.

It is a strong prime.

It is an emirp because it is prime and its reverse (3422110781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1870112243 - 2²⁰ = 1869063667 is a prime.

It is not a weakly prime, because it can be changed into another prime (1870112249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 935056121 + 935056122.

It is an arithmetic number, because the mean of its divisors is an integer number (935056122).

Almost surely, 2^1870112243 is an apocalyptic number.

1870112243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1870112243 is an equidigital number, since it uses as much as digits as its factorization.

1870112243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1870112243 is about 43244.7944034886. The cubic root of 1870112243 is about 1232.0336162874.

The spelling of 1870112243 in words is "one billion, eight hundred seventy million, one hundred twelve thousand, two hundred forty-three".