111121320004 has 12 divisors (see below), whose sum is σ = 194467809004. Its totient is φ = 55559088864.

The previous prime is 111121319971. The next prime is 111121320017. The reversal of 111121320004 is 400023121111.

It can be written as a sum of positive squares in 2 ways, for example, as 48115299904 + 63006020100 = 219352^2 + 251010^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111121320004.

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, 225759 + ... + 522694.

Almost surely, 2^111121320004 is an apocalyptic number.

It is an amenable number.

111121320004 is a deficient number, since it is larger than the sum of its proper divisors (83346489000).

111121320004 is a wasteful number, since it uses less digits than its factorization.

111121320004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785574 (or 785572 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111121320004 its reverse (400023121111), we get a palindrome (511144441115).

The spelling of 111121320004 in words is "one hundred eleven billion, one hundred twenty-one million, three hundred twenty thousand, four".