11202120023 has 4 divisors (see below), whose sum is σ = 11202337608. Its totient is φ = 11201902440.

The previous prime is 11202119993. The next prime is 11202120049. The reversal of 11202120023 is 32002120211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11202120023 - 2⁸ = 11202119767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202320023) 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 3 ways as a sum of consecutive naturals, for example, 16640 + ... + 150602.

It is an arithmetic number, because the mean of its divisors is an integer number (2800584402).

Almost surely, 2^11202120023 is an apocalyptic number.

11202120023 is a deficient number, since it is larger than the sum of its proper divisors (217585).

11202120023 is an equidigital number, since it uses as much as digits as its factorization.

11202120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217584.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11202120023 its reverse (32002120211), we get a palindrome (43204240234).

The spelling of 11202120023 in words is "eleven billion, two hundred two million, one hundred twenty thousand, twenty-three".