111444420004 has 24 divisors (see below), whose sum is σ = 196339341240. Its totient is φ = 55348353024.

The previous prime is 111444420001. The next prime is 111444420007. The reversal of 111444420004 is 400024444111.

It is an interprime number because it is at equal distance from previous prime (111444420001) and next prime (111444420007).

It can be written as a sum of positive squares in 4 ways, for example, as 23888793600 + 87555626404 = 154560^2 + 295898^2 .

It is not an unprimeable number, because it can be changed into a prime (111444420001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393582 + ... + 614650.

It is an arithmetic number, because the mean of its divisors is an integer number (8180805885).

Almost surely, 2^111444420004 is an apocalyptic number.

It is an amenable number.

111444420004 is a deficient number, since it is larger than the sum of its proper divisors (84894921236).

111444420004 is a wasteful number, since it uses less digits than its factorization.

111444420004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221919 (or 221917 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 111444420004 its reverse (400024444111), we get a palindrome (511468864115).

The spelling of 111444420004 in words is "one hundred eleven billion, four hundred forty-four million, four hundred twenty thousand, four".