111401635636 has 12 divisors (see below), whose sum is σ = 194955677280. Its totient is φ = 55700013560.

The previous prime is 111401635633. The next prime is 111401635643. The reversal of 111401635636 is 636536104111.

It is a super-2 number, since 2×111401635636² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111401635595 and 111401635604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111401635633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199071 + ... + 512281.

It is an arithmetic number, because the mean of its divisors is an integer number (16246306440).

Almost surely, 2^111401635636 is an apocalyptic number.

It is an amenable number.

111401635636 is a deficient number, since it is larger than the sum of its proper divisors (83554041644).

111401635636 is a wasteful number, since it uses less digits than its factorization.

111401635636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402134 (or 402132 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 111401635636 its reverse (636536104111), we get a palindrome (747937739747).

The spelling of 111401635636 in words is "one hundred eleven billion, four hundred one million, six hundred thirty-five thousand, six hundred thirty-six".