111032001121 has 4 divisors (see below), whose sum is σ = 111177904644. Its totient is φ = 110886097600.

The previous prime is 111032001109. The next prime is 111032001161. The reversal of 111032001121 is 121100230111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6419214400 + 104612786721 = 80120^2 + 323439^2 .

It is a cyclic number.

It is not a de Polignac number, because 111032001121 - 2³¹ = 108884517473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111032001161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72950620 + ... + 72952141.

It is an arithmetic number, because the mean of its divisors is an integer number (27794476161).

Almost surely, 2^111032001121 is an apocalyptic number.

It is an amenable number.

111032001121 is a deficient number, since it is larger than the sum of its proper divisors (145903523).

111032001121 is an equidigital number, since it uses as much as digits as its factorization.

111032001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145903522.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111032001121 its reverse (121100230111), we get a palindrome (232132231232).

The spelling of 111032001121 in words is "one hundred eleven billion, thirty-two million, one thousand, one hundred twenty-one".