1200220023203 has 4 divisors (see below), whose sum is σ = 1200226549920. Its totient is φ = 1200213496488.

The previous prime is 1200220023193. The next prime is 1200220023239. The reversal of 1200220023203 is 3023200220021.

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 1200220023203 - 2¹² = 1200220019107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200220023293) 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, 2979275 + ... + 3358052.

It is an arithmetic number, because the mean of its divisors is an integer number (300056637480).

Almost surely, 2^{1200220023203} is an apocalyptic number.

1200220023203 is a deficient number, since it is larger than the sum of its proper divisors (6526717).

1200220023203 is an equidigital number, since it uses as much as digits as its factorization.

1200220023203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6526716.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 1200220023203 its reverse (3023200220021), we get a palindrome (4223420243224).

The spelling of 1200220023203 in words is "one trillion, two hundred billion, two hundred twenty million, twenty-three thousand, two hundred three".