111213012304 has 20 divisors (see below), whose sum is σ = 215529190740. Its totient is φ = 55592576000.

The previous prime is 111213012299. The next prime is 111213012307. The reversal of 111213012304 is 403210312111.

It can be written as a sum of positive squares in 2 ways, for example, as 13606755904 + 97606256400 = 116648^2 + 312420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213012307) 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, 804619 + ... + 932650.

It is an arithmetic number, because the mean of its divisors is an integer number (10776459537).

Almost surely, 2^111213012304 is an apocalyptic number.

It is an amenable number.

111213012304 is a deficient number, since it is larger than the sum of its proper divisors (104316178436).

111213012304 is a wasteful number, since it uses less digits than its factorization.

111213012304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741278 (or 1741272 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111213012304 its reverse (403210312111), we get a palindrome (514423324415).

The spelling of 111213012304 in words is "one hundred eleven billion, two hundred thirteen million, twelve thousand, three hundred four".