111421320441 has 16 divisors (see below), whose sum is σ = 149971187520. Its totient is φ = 73576589760.

The previous prime is 111421320407. The next prime is 111421320469. The reversal of 111421320441 is 144023124111.

It is a happy number.

It is not a de Polignac number, because 111421320441 - 2³⁴ = 94241451257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111421320041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1038091 + ... + 1140383.

It is an arithmetic number, because the mean of its divisors is an integer number (9373199220).

Almost surely, 2^111421320441 is an apocalyptic number.

It is an amenable number.

111421320441 is a deficient number, since it is larger than the sum of its proper divisors (38549867079).

111421320441 is a wasteful number, since it uses less digits than its factorization.

111421320441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105736.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 111421320441 its reverse (144023124111), we get a palindrome (255444444552).

The spelling of 111421320441 in words is "one hundred eleven billion, four hundred twenty-one million, three hundred twenty thousand, four hundred forty-one".