111442521004 has 12 divisors (see below), whose sum is σ = 206496436104. Its totient is φ = 52443539264.

The previous prime is 111442520983. The next prime is 111442521019. The reversal of 111442521004 is 400125244111.

It is a self number, because there is not a number n which added to its sum of digits gives 111442521004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819430234 + ... + 819430369.

It is an arithmetic number, because the mean of its divisors is an integer number (17208036342).

Almost surely, 2^111442521004 is an apocalyptic number.

It is an amenable number.

111442521004 is a deficient number, since it is larger than the sum of its proper divisors (95053915100).

111442521004 is a wasteful number, since it uses less digits than its factorization.

111442521004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638860624 (or 1638860622 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 111442521004 its reverse (400125244111), we get a palindrome (511567765115).

The spelling of 111442521004 in words is "one hundred eleven billion, four hundred forty-two million, five hundred twenty-one thousand, four".