1200112243 has 12 divisors (see below), whose sum is σ = 1320568704. Its totient is φ = 1089822800.

The previous prime is 1200112237. The next prime is 1200112289. The reversal of 1200112243 is 3422110021.

It is not a de Polignac number, because 1200112243 - 2¹⁷ = 1199981171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200115243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117678 + ... + 127468.

It is an arithmetic number, because the mean of its divisors is an integer number (110047392).

Almost surely, 2^1200112243 is an apocalyptic number.

1200112243 is a deficient number, since it is larger than the sum of its proper divisors (120456461).

1200112243 is a wasteful number, since it uses less digits than its factorization.

1200112243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10826 (or 10815 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1200112243 is about 34642.6362016519. The cubic root of 1200112243 is about 1062.6917003679.

Adding to 1200112243 its reverse (3422110021), we get a palindrome (4622222264).

The spelling of 1200112243 in words is "one billion, two hundred million, one hundred twelve thousand, two hundred forty-three".