1001201102203 has 4 divisors (see below), whose sum is σ = 1017614235088. Its totient is φ = 984787969320.

The previous prime is 1001201102183. The next prime is 1001201102233. The reversal of 1001201102203 is 3022011021001.

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 1001201102203 - 2⁵ = 1001201102171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001201102233) 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, 8206566351 + ... + 8206566472.

It is an arithmetic number, because the mean of its divisors is an integer number (254403558772).

Almost surely, 2^{1001201102203} is an apocalyptic number.

1001201102203 is a deficient number, since it is larger than the sum of its proper divisors (16413132885).

1001201102203 is an equidigital number, since it uses as much as digits as its factorization.

1001201102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16413132884.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1001201102203 its reverse (3022011021001), we get a palindrome (4023212123204).

The spelling of 1001201102203 in words is "one trillion, one billion, two hundred one million, one hundred two thousand, two hundred three".