11123445567889 has 8 divisors (see below), whose sum is σ = 11424175223040. Its totient is φ = 10822720964976.

The previous prime is 11123445567847. The next prime is 11123445567931. The reversal of 11123445567889 is 98876554432111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11123445567847) and next prime (11123445567931).

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 11123445567889 - 2¹⁵ = 11123445535121 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 11123445567889.

It is not an unprimeable number, because it can be changed into a prime (11123445565889) 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, 3432672 + ... + 5833534.

It is an arithmetic number, because the mean of its divisors is an integer number (1428021902880).

Almost surely, 2^{11123445567889} is an apocalyptic number.

It is an amenable number.

11123445567889 is a deficient number, since it is larger than the sum of its proper divisors (300729655151).

11123445567889 is a wasteful number, since it uses less digits than its factorization.

11123445567889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526119.

The product of its digits is 58060800, while the sum is 64.

The spelling of 11123445567889 in words is "eleven trillion, one hundred twenty-three billion, four hundred forty-five million, five hundred sixty-seven thousand, eight hundred eighty-nine".