11212204523 has 8 divisors (see below), whose sum is σ = 12369186816. Its totient is φ = 10097294400.

The previous prime is 11212204517. The next prime is 11212204543. The reversal of 11212204523 is 32540221211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11212204523 - 2⁶ = 11212204459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212204543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10517483 + ... + 10518548.

It is an arithmetic number, because the mean of its divisors is an integer number (1546148352).

Almost surely, 2^11212204523 is an apocalyptic number.

11212204523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11212204523 is a deficient number, since it is larger than the sum of its proper divisors (1156982293).

11212204523 is a wasteful number, since it uses less digits than its factorization.

11212204523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21036085.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 11212204523 its reverse (32540221211), we get a palindrome (43752425734).

The spelling of 11212204523 in words is "eleven billion, two hundred twelve million, two hundred four thousand, five hundred twenty-three".