201121111211203 has 8 divisors (see below), whose sum is σ = 212957973754560. Its totient is φ = 189284938550400.

The previous prime is 201121111211179. The next prime is 201121111211219. The reversal of 201121111211203 is 302112111121102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201121111211203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201121111211233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171870363 + ... + 173036596.

It is an arithmetic number, because the mean of its divisors is an integer number (26619746719320).

Almost surely, 2^{201121111211203} is an apocalyptic number.

201121111211203 is a deficient number, since it is larger than the sum of its proper divisors (11836862543357).

201121111211203 is a wasteful number, since it uses less digits than its factorization.

201121111211203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344941277.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 201121111211203 its reverse (302112111121102), we get a palindrome (503233222332305).

The spelling of 201121111211203 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred eleven million, two hundred eleven thousand, two hundred three".