11223345678 has 32 divisors (see below), whose sum is σ = 22577568000. Its totient is φ = 3719333376.

The previous prime is 11223345671. The next prime is 11223345697. The reversal of 11223345678 is 87654332211.

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 (11223345671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1882350 + ... + 1888302.

It is an arithmetic number, because the mean of its divisors is an integer number (705549000).

Almost surely, 2^11223345678 is an apocalyptic number.

11223345678 is an abundant number, since it is smaller than the sum of its proper divisors (11354222322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11223345678 is a wasteful number, since it uses less digits than its factorization.

11223345678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7736.

The product of its digits is 241920, while the sum is 42.

Adding to 11223345678 its reverse (87654332211), we get a palindrome (98877677889).

The spelling of 11223345678 in words is "eleven billion, two hundred twenty-three million, three hundred forty-five thousand, six hundred seventy-eight".