111320440145 has 16 divisors (see below), whose sum is σ = 141459401808. Its totient is φ = 83807692800.

The previous prime is 111320440129. The next prime is 111320440157. The reversal of 111320440145 is 541044023111.

It can be written as a sum of positive squares in 8 ways, for example, as 3506060944 + 107814379201 = 59212^2 + 328351^2 .

It is not a de Polignac number, because 111320440145 - 2⁴ = 111320440129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 677045 + ... + 825245.

It is an arithmetic number, because the mean of its divisors is an integer number (8841212613).

Almost surely, 2^111320440145 is an apocalyptic number.

It is an amenable number.

111320440145 is a deficient number, since it is larger than the sum of its proper divisors (30138961663).

111320440145 is a wasteful number, since it uses less digits than its factorization.

111320440145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157060.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 111320440145 its reverse (541044023111), we get a palindrome (652364463256).

The spelling of 111320440145 in words is "one hundred eleven billion, three hundred twenty million, four hundred forty thousand, one hundred forty-five".