1200040322203 has 4 divisors (see below), whose sum is σ = 1200073014000. Its totient is φ = 1200007630408.

The previous prime is 1200040322189. The next prime is 1200040322219. The reversal of 1200040322203 is 3022230400021.

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 1200040322203 - 2²¹ = 1200038225051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200040323203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16290775 + ... + 16364272.

It is an arithmetic number, because the mean of its divisors is an integer number (300018253500).

Almost surely, 2^{1200040322203} is an apocalyptic number.

1200040322203 is a deficient number, since it is larger than the sum of its proper divisors (32691797).

1200040322203 is an equidigital number, since it uses as much as digits as its factorization.

1200040322203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32691796.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 1200040322203 its reverse (3022230400021), we get a palindrome (4222270722224).

The spelling of 1200040322203 in words is "one trillion, two hundred billion, forty million, three hundred twenty-two thousand, two hundred three".