11234566789 has 4 divisors (see below), whose sum is σ = 11235754080. Its totient is φ = 11233379500.

The previous prime is 11234566751. The next prime is 11234566793. The reversal of 11234566789 is 98766543211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11234566789 - 2¹³ = 11234558597 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11234566709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579337 + ... + 598414.

It is an arithmetic number, because the mean of its divisors is an integer number (2808938520).

Almost surely, 2^11234566789 is an apocalyptic number.

It is an amenable number.

11234566789 is a deficient number, since it is larger than the sum of its proper divisors (1187291).

11234566789 is an equidigital number, since it uses as much as digits as its factorization.

11234566789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187290.

The product of its digits is 2177280, while the sum is 52.

The spelling of 11234566789 in words is "eleven billion, two hundred thirty-four million, five hundred sixty-six thousand, seven hundred eighty-nine".