111440421452 has 12 divisors (see below), whose sum is σ = 195352974600. Its totient is φ = 55625285856.

The previous prime is 111440421439. The next prime is 111440421457. The reversal of 111440421452 is 254124044111.

It is not an unprimeable number, because it can be changed into a prime (111440421457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23728577 + ... + 23733272.

It is an arithmetic number, because the mean of its divisors is an integer number (16279414550).

Almost surely, 2^111440421452 is an apocalyptic number.

It is an amenable number.

111440421452 is a deficient number, since it is larger than the sum of its proper divisors (83912553148).

111440421452 is a wasteful number, since it uses less digits than its factorization.

111440421452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47462440 (or 47462438 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 111440421452 its reverse (254124044111), we get a palindrome (365564465563).

The spelling of 111440421452 in words is "one hundred eleven billion, four hundred forty million, four hundred twenty-one thousand, four hundred fifty-two".