2011131222303 has 32 divisors (see below), whose sum is σ = 3082012070400. Its totient is φ = 1142682454656.

The previous prime is 2011131222299. The next prime is 2011131222377. The reversal of 2011131222303 is 3032221311102.

It is not a de Polignac number, because 2011131222303 - 2² = 2011131222299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2011131222303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011131222203) 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, 49256325 + ... + 49297137.

It is an arithmetic number, because the mean of its divisors is an integer number (96312877200).

Almost surely, 2^{2011131222303} is an apocalyptic number.

2011131222303 is a deficient number, since it is larger than the sum of its proper divisors (1070880848097).

2011131222303 is a wasteful number, since it uses less digits than its factorization.

2011131222303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54111.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2011131222303 its reverse (3032221311102), we get a palindrome (5043352533405).

The spelling of 2011131222303 in words is "two trillion, eleven billion, one hundred thirty-one million, two hundred twenty-two thousand, three hundred three".