111121320003 has 16 divisors (see below), whose sum is σ = 152703864576. Its totient is φ = 71823978720.

The previous prime is 111121319971. The next prime is 111121320017. The reversal of 111121320003 is 300023121111.

It is a happy number.

It is not a de Polignac number, because 111121320003 - 2⁵ = 111121319971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111121320083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1737303 + ... + 1800128.

It is an arithmetic number, because the mean of its divisors is an integer number (9543991536).

Almost surely, 2^111121320003 is an apocalyptic number.

111121320003 is a deficient number, since it is larger than the sum of its proper divisors (41582544573).

111121320003 is a wasteful number, since it uses less digits than its factorization.

111121320003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537754.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111121320003 its reverse (300023121111), we get a palindrome (411144441114).

The spelling of 111121320003 in words is "one hundred eleven billion, one hundred twenty-one million, three hundred twenty thousand, three".