11124111997 has 16 divisors (see below), whose sum is σ = 11502089280. Its totient is φ = 10751876352.

The previous prime is 11124111967. The next prime is 11124112003. The reversal of 11124111997 is 79911142111.

It is a cyclic number.

It is not a de Polignac number, because 11124111997 - 2¹⁵ = 11124079229 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 (11124111937) 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 15 ways as a sum of consecutive naturals, for example, 3822579 + ... + 3825487.

It is an arithmetic number, because the mean of its divisors is an integer number (718880580).

Almost surely, 2^11124111997 is an apocalyptic number.

It is an amenable number.

11124111997 is a deficient number, since it is larger than the sum of its proper divisors (377977283).

11124111997 is a wasteful number, since it uses less digits than its factorization.

11124111997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852.

The product of its digits is 4536, while the sum is 37.

The spelling of 11124111997 in words is "eleven billion, one hundred twenty-four million, one hundred eleven thousand, nine hundred ninety-seven".