111431042444 has 12 divisors (see below), whose sum is σ = 195015721824. Its totient is φ = 55712264784.

The previous prime is 111431042407. The next prime is 111431042449. The reversal of 111431042444 is 444240134111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111431042449) 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, 736292 + ... + 874635.

It is an arithmetic number, because the mean of its divisors is an integer number (16251310152).

Almost surely, 2^111431042444 is an apocalyptic number.

It is an amenable number.

111431042444 is a deficient number, since it is larger than the sum of its proper divisors (83584679380).

111431042444 is a wasteful number, since it uses less digits than its factorization.

111431042444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628224 (or 1628222 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 111431042444 its reverse (444240134111), we get a palindrome (555671176555).

The spelling of 111431042444 in words is "one hundred eleven billion, four hundred thirty-one million, forty-two thousand, four hundred forty-four".