11123400443 has 8 divisors (see below), whose sum is σ = 11159106048. Its totient is φ = 11087730304.

The previous prime is 11123400427. The next prime is 11123400469. The reversal of 11123400443 is 34400432111.

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 11123400443 - 2⁴ = 11123400427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123400473) 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 7 ways as a sum of consecutive naturals, for example, 711155 + ... + 726627.

It is an arithmetic number, because the mean of its divisors is an integer number (1394888256).

Almost surely, 2^11123400443 is an apocalyptic number.

11123400443 is a deficient number, since it is larger than the sum of its proper divisors (35705605).

11123400443 is a wasteful number, since it uses less digits than its factorization.

11123400443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17733.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11123400443 its reverse (34400432111), we get a palindrome (45523832554).

The spelling of 11123400443 in words is "eleven billion, one hundred twenty-three million, four hundred thousand, four hundred forty-three".