1200007043 has 2 divisors, whose sum is σ = 1200007044. Its totient is φ = 1200007042.

The previous prime is 1200007027. The next prime is 1200007087. The reversal of 1200007043 is 3407000021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200007043 - 2⁴ = 1200007027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200007343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600003521 + 600003522.

It is an arithmetic number, because the mean of its divisors is an integer number (600003522).

Almost surely, 2^1200007043 is an apocalyptic number.

1200007043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200007043 is an equidigital number, since it uses as much as digits as its factorization.

1200007043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1200007043 is about 34641.1178081770. The cubic root of 1200007043 is about 1062.6606481520.

Adding to 1200007043 its reverse (3407000021), we get a palindrome (4607007064).

The spelling of 1200007043 in words is "one billion, two hundred million, seven thousand, forty-three".