2011231313103 has 16 divisors (see below), whose sum is σ = 2862538272000. Its totient is φ = 1252360488960.

The previous prime is 2011231313093. The next prime is 2011231313149. The reversal of 2011231313103 is 3013131321102.

It is a happy number.

It is not a de Polignac number, because 2011231313103 - 2⁴ = 2011231313087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011231313103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011231315103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248480178 + ... + 248488271.

It is an arithmetic number, because the mean of its divisors is an integer number (178908642000).

Almost surely, 2^{2011231313103} is an apocalyptic number.

2011231313103 is a deficient number, since it is larger than the sum of its proper divisors (851306958897).

2011231313103 is a wasteful number, since it uses less digits than its factorization.

2011231313103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496968542.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 2011231313103 its reverse (3013131321102), we get a palindrome (5024362634205).

The spelling of 2011231313103 in words is "two trillion, eleven billion, two hundred thirty-one million, three hundred thirteen thousand, one hundred three".