11201120023 has 4 divisors (see below), whose sum is σ = 11286624888. Its totient is φ = 11115615160.

The previous prime is 11201120003. The next prime is 11201120113. The reversal of 11201120023 is 32002110211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11201120023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201119985 and 11201120012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201120003) 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, 42752236 + ... + 42752497.

It is an arithmetic number, because the mean of its divisors is an integer number (2821656222).

Almost surely, 2^11201120023 is an apocalyptic number.

11201120023 is a deficient number, since it is larger than the sum of its proper divisors (85504865).

11201120023 is an equidigital number, since it uses as much as digits as its factorization.

11201120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85504864.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11201120023 its reverse (32002110211), we get a palindrome (43203230234).

The spelling of 11201120023 in words is "eleven billion, two hundred one million, one hundred twenty thousand, twenty-three".