2011323023203 has 16 divisors (see below), whose sum is σ = 2192571533376. Its totient is φ = 1833938196480.

The previous prime is 2011323023201. The next prime is 2011323023243. The reversal of 2011323023203 is 3023203231102.

It is not a de Polignac number, because 2011323023203 - 2¹ = 2011323023201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011323023201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 873751 + ... + 2187712.

It is an arithmetic number, because the mean of its divisors is an integer number (137035720836).

Almost surely, 2^{2011323023203} is an apocalyptic number.

2011323023203 is a deficient number, since it is larger than the sum of its proper divisors (181248510173).

2011323023203 is a wasteful number, since it uses less digits than its factorization.

2011323023203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062094.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2011323023203 its reverse (3023203231102), we get a palindrome (5034526254305).

The spelling of 2011323023203 in words is "two trillion, eleven billion, three hundred twenty-three million, twenty-three thousand, two hundred three".