2011323331103 has 4 divisors (see below), whose sum is σ = 2011326172680. Its totient is φ = 2011320489528.

The previous prime is 2011323331099. The next prime is 2011323331141. The reversal of 2011323331103 is 3011333231102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2011323331103 - 2² = 2011323331099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011323331153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582101 + ... + 2088417.

It is an arithmetic number, because the mean of its divisors is an integer number (502831543170).

Almost surely, 2^{2011323331103} is an apocalyptic number.

2011323331103 is a deficient number, since it is larger than the sum of its proper divisors (2841577).

2011323331103 is a wasteful number, since it uses less digits than its factorization.

2011323331103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841576.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 2011323331103 its reverse (3011333231102), we get a palindrome (5022656562205).

The spelling of 2011323331103 in words is "two trillion, eleven billion, three hundred twenty-three million, three hundred thirty-one thousand, one hundred three".