1200042223 has 16 divisors (see below), whose sum is σ = 1338923520. Its totient is φ = 1068875136.

The previous prime is 1200042191. The next prime is 1200042229. The reversal of 1200042223 is 3222400021.

It is not a de Polignac number, because 1200042223 - 2⁵ = 1200042191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200042197 and 1200042206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200042229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510136 + ... + 512482.

It is an arithmetic number, because the mean of its divisors is an integer number (83682720).

Almost surely, 2^1200042223 is an apocalyptic number.

1200042223 is a deficient number, since it is larger than the sum of its proper divisors (138881297).

1200042223 is a wasteful number, since it uses less digits than its factorization.

1200042223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1200042223 is about 34641.6255825272. The cubic root of 1200042223 is about 1062.6710325455.

Adding to 1200042223 its reverse (3222400021), we get a palindrome (4422442244).

The spelling of 1200042223 in words is "one billion, two hundred million, forty-two thousand, two hundred twenty-three".