2011211303223 has 4 divisors (see below), whose sum is σ = 2681615070968. Its totient is φ = 1340807535480.

The previous prime is 2011211303203. The next prime is 2011211303237. The reversal of 2011211303223 is 3223031121102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2011211303223 - 2⁶ = 2011211303159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011211303223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011211303203) 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, 335201883868 + ... + 335201883873.

It is an arithmetic number, because the mean of its divisors is an integer number (670403767742).

Almost surely, 2^{2011211303223} is an apocalyptic number.

2011211303223 is a deficient number, since it is larger than the sum of its proper divisors (670403767745).

2011211303223 is an equidigital number, since it uses as much as digits as its factorization.

2011211303223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670403767744.

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

Adding to 2011211303223 its reverse (3223031121102), we get a palindrome (5234242424325).

The spelling of 2011211303223 in words is "two trillion, eleven billion, two hundred eleven million, three hundred three thousand, two hundred twenty-three".