1200330231 has 4 divisors (see below), whose sum is σ = 1600440312. Its totient is φ = 800220152.

The previous prime is 1200330221. The next prime is 1200330253. The reversal of 1200330231 is 1320330021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200330231 - 2¹⁷ = 1200199159 is a prime.

It is a super-2 number, since 2×1200330231² = 2881585326905026722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1200330231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200330221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200055036 + ... + 200055041.

It is an arithmetic number, because the mean of its divisors is an integer number (400110078).

Almost surely, 2^1200330231 is an apocalyptic number.

1200330231 is a deficient number, since it is larger than the sum of its proper divisors (400110081).

1200330231 is an equidigital number, since it uses as much as digits as its factorization.

1200330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400110080.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1200330231 is about 34645.7822974168. The cubic root of 1200330231 is about 1062.7560387983.

Adding to 1200330231 its reverse (1320330021), we get a palindrome (2520660252).

The spelling of 1200330231 in words is "one billion, two hundred million, three hundred thirty thousand, two hundred thirty-one".