111401605204 has 6 divisors (see below), whose sum is σ = 194952809114. Its totient is φ = 55700802600.

The previous prime is 111401605199. The next prime is 111401605283. The reversal of 111401605204 is 402506104111.

It can be written as a sum of positive squares in only one way, i.e., 104937123600 + 6464481604 = 323940^2 + 80402^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13925200647 + ... + 13925200654.

Almost surely, 2^111401605204 is an apocalyptic number.

It is an amenable number.

111401605204 is a deficient number, since it is larger than the sum of its proper divisors (83551203910).

111401605204 is a wasteful number, since it uses less digits than its factorization.

111401605204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27850401305 (or 27850401303 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 111401605204 its reverse (402506104111), we get a palindrome (513907709315).

The spelling of 111401605204 in words is "one hundred eleven billion, four hundred one million, six hundred five thousand, two hundred four".