2011321123303 has 8 divisors (see below), whose sum is σ = 2015252134400. Its totient is φ = 2007392230368.

The previous prime is 2011321123297. The next prime is 2011321123307. The reversal of 2011321123303 is 3033211231102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011321123303 is a prime.

It is a super-2 number, since 2×2011321123303² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011321123307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378138 + ... + 2433496.

It is an arithmetic number, because the mean of its divisors is an integer number (251906516800).

Almost surely, 2^{2011321123303} is an apocalyptic number.

2011321123303 is a deficient number, since it is larger than the sum of its proper divisors (3931011097).

2011321123303 is a wasteful number, since it uses less digits than its factorization.

2011321123303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059081.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2011321123303 its reverse (3033211231102), we get a palindrome (5044532354405).

The spelling of 2011321123303 in words is "two trillion, eleven billion, three hundred twenty-one million, one hundred twenty-three thousand, three hundred three".