2011211121303 has 32 divisors (see below), whose sum is σ = 2997751204800. Its totient is φ = 1332631738368.

The previous prime is 2011211121253. The next prime is 2011211121323. The reversal of 2011211121303 is 3031211121102.

2011211121303 is a `hidden beast` number, since 20 + 11 + 211 + 121 + 303 = 666.

It is not a de Polignac number, because 2011211121303 - 2¹⁶ = 2011211055767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011211121323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14922151 + ... + 15056327.

It is an arithmetic number, because the mean of its divisors is an integer number (93679725150).

Almost surely, 2^{2011211121303} is an apocalyptic number.

2011211121303 is a deficient number, since it is larger than the sum of its proper divisors (986540083497).

2011211121303 is a wasteful number, since it uses less digits than its factorization.

2011211121303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137568 (or 137562 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 2011211121303 its reverse (3031211121102), we get a palindrome (5042422242405).

The spelling of 2011211121303 in words is "two trillion, eleven billion, two hundred eleven million, one hundred twenty-one thousand, three hundred three".