11234456789 has 8 divisors (see below), whose sum is σ = 11725198080. Its totient is φ = 10743906096.

The previous prime is 11234456747. The next prime is 11234456797. The reversal of 11234456789 is 98765443211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11234456789 - 2¹⁶ = 11234391253 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 (11234456719) 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, 80132 + ... + 169970.

It is an arithmetic number, because the mean of its divisors is an integer number (1465649760).

Almost surely, 2^11234456789 is an apocalyptic number.

It is an amenable number.

11234456789 is a deficient number, since it is larger than the sum of its proper divisors (490741291).

11234456789 is an equidigital number, since it uses as much as digits as its factorization.

11234456789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95299.

The product of its digits is 1451520, while the sum is 50.

The spelling of 11234456789 in words is "eleven billion, two hundred thirty-four million, four hundred fifty-six thousand, seven hundred eighty-nine".