1001103211203 has 4 divisors (see below), whose sum is σ = 1334804281608. Its totient is φ = 667402140800.

The previous prime is 1001103211193. The next prime is 1001103211211. The reversal of 1001103211203 is 3021123011001.

It is a happy number.

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 1001103211203 - 2¹² = 1001103207107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001103211253) 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, 166850535198 + ... + 166850535203.

It is an arithmetic number, because the mean of its divisors is an integer number (333701070402).

Almost surely, 2^{1001103211203} is an apocalyptic number.

1001103211203 is a deficient number, since it is larger than the sum of its proper divisors (333701070405).

1001103211203 is an equidigital number, since it uses as much as digits as its factorization.

1001103211203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333701070404.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1001103211203 its reverse (3021123011001), we get a palindrome (4022226222204).

The spelling of 1001103211203 in words is "one trillion, one billion, one hundred three million, two hundred eleven thousand, two hundred three".