1112421043 has 2 divisors, whose sum is σ = 1112421044. Its totient is φ = 1112421042.

The previous prime is 1112421017. The next prime is 1112421049. The reversal of 1112421043 is 3401242111.

It is a strong prime.

It is an emirp because it is prime and its reverse (3401242111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112421043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112421043.

It is not a weakly prime, because it can be changed into another prime (1112421049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556210521 + 556210522.

It is an arithmetic number, because the mean of its divisors is an integer number (556210522).

Almost surely, 2^1112421043 is an apocalyptic number.

1112421043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112421043 is an equidigital number, since it uses as much as digits as its factorization.

1112421043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1112421043 is about 33352.9765238427. The cubic root of 1112421043 is about 1036.1510350975.

Adding to 1112421043 its reverse (3401242111), we get a palindrome (4513663154).

The spelling of 1112421043 in words is "one billion, one hundred twelve million, four hundred twenty-one thousand, forty-three".