11212044123 has 12 divisors (see below), whose sum is σ = 17390109480. Its totient is φ = 6406882272.

The previous prime is 11212044121. The next prime is 11212044169. The reversal of 11212044123 is 32144021211.

It is not a de Polignac number, because 11212044123 - 2¹ = 11212044121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11212044123.

It is not an unprimeable number, because it can be changed into a prime (11212044121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38136058 + ... + 38136351.

It is an arithmetic number, because the mean of its divisors is an integer number (1449175790).

Almost surely, 2^11212044123 is an apocalyptic number.

11212044123 is a deficient number, since it is larger than the sum of its proper divisors (6178065357).

11212044123 is an equidigital number, since it uses as much as digits as its factorization.

11212044123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76272426 (or 76272419 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11212044123 its reverse (32144021211), we get a palindrome (43356065334).

The spelling of 11212044123 in words is "eleven billion, two hundred twelve million, forty-four thousand, one hundred twenty-three".