11123220323013 has 4 divisors (see below), whose sum is σ = 14830960430688. Its totient is φ = 7415480215340.

The previous prime is 11123220323011. The next prime is 11123220323023. The reversal of 11123220323013 is 31032302232111.

11123220323013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11123220323013 - 2¹ = 11123220323011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123220323011) 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, 1853870053833 + ... + 1853870053838.

It is an arithmetic number, because the mean of its divisors is an integer number (3707740107672).

Almost surely, 2^{11123220323013} is an apocalyptic number.

It is an amenable number.

11123220323013 is a deficient number, since it is larger than the sum of its proper divisors (3707740107675).

11123220323013 is an equidigital number, since it uses as much as digits as its factorization.

11123220323013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707740107674.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 11123220323013 its reverse (31032302232111), we get a palindrome (42155522555124).

The spelling of 11123220323013 in words is "eleven trillion, one hundred twenty-three billion, two hundred twenty million, three hundred twenty-three thousand, thirteen".