111003321456 has 120 divisors (see below), whose sum is σ = 329653484160. Its totient is φ = 36140561856.

The previous prime is 111003321449. The next prime is 111003321467. The reversal of 111003321456 is 654123300111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164796 + ... + 499163.

It is an arithmetic number, because the mean of its divisors is an integer number (2747112368).

Almost surely, 2^111003321456 is an apocalyptic number.

111003321456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

111003321456 is an abundant number, since it is smaller than the sum of its proper divisors (218650162704).

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

111003321456 is an equidigital number, since it uses as much as digits as its factorization.

111003321456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664025 (or 664007 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 111003321456 its reverse (654123300111), we get a palindrome (765126621567).

The spelling of 111003321456 in words is "one hundred eleven billion, three million, three hundred twenty-one thousand, four hundred fifty-six".