1012443402203 has 4 divisors (see below), whose sum is σ = 1029040835088. Its totient is φ = 995845969320.

The previous prime is 1012443402167. The next prime is 1012443402209. The reversal of 1012443402203 is 3022043442101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012443402203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012443402209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8298716351 + ... + 8298716472.

It is an arithmetic number, because the mean of its divisors is an integer number (257260208772).

Almost surely, 2^{1012443402203} is an apocalyptic number.

1012443402203 is a deficient number, since it is larger than the sum of its proper divisors (16597432885).

1012443402203 is an equidigital number, since it uses as much as digits as its factorization.

1012443402203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16597432884.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1012443402203 its reverse (3022043442101), we get a palindrome (4034486844304).

The spelling of 1012443402203 in words is "one trillion, twelve billion, four hundred forty-three million, four hundred two thousand, two hundred three".