201111212021203 has 16 divisors (see below), whose sum is σ = 219507955365600. Its totient is φ = 182733460116480.

The previous prime is 201111212021197. The next prime is 201111212021227. The reversal of 201111212021203 is 302120212111102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201111212021203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201111212021263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614041975 + ... + 614369407.

It is an arithmetic number, because the mean of its divisors is an integer number (13719247210350).

Almost surely, 2^{201111212021203} is an apocalyptic number.

201111212021203 is a deficient number, since it is larger than the sum of its proper divisors (18396743344397).

201111212021203 is a wasteful number, since it uses less digits than its factorization.

201111212021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356262.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 201111212021203 its reverse (302120212111102), we get a palindrome (503231424132305).

The spelling of 201111212021203 in words is "two hundred one trillion, one hundred eleven billion, two hundred twelve million, twenty-one thousand, two hundred three".