111321003234 has 64 divisors (see below), whose sum is σ = 259474544640. Its totient is φ = 31182695040.

The previous prime is 111321003197. The next prime is 111321003239. The reversal of 111321003234 is 432300123111.

It is a super-2 number, since 2×111321003234² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 111321003234.

It is not an unprimeable number, because it can be changed into a prime (111321003239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429502 + ... + 638054.

It is an arithmetic number, because the mean of its divisors is an integer number (4054289760).

Almost surely, 2^111321003234 is an apocalyptic number.

111321003234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111321003234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129737272320).

111321003234 is an abundant number, since it is smaller than the sum of its proper divisors (148153541406).

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

111321003234 is a wasteful number, since it uses less digits than its factorization.

111321003234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208815.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 111321003234 its reverse (432300123111), we get a palindrome (543621126345).

The spelling of 111321003234 in words is "one hundred eleven billion, three hundred twenty-one million, three thousand, two hundred thirty-four".