111242505436 has 12 divisors (see below), whose sum is σ = 194683937112. Its totient is φ = 55618523408.

The previous prime is 111242505397. The next prime is 111242505443. The reversal of 111242505436 is 634505242111.

It is a congruent number.

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, 589210 + ... + 754753.

It is an arithmetic number, because the mean of its divisors is an integer number (16223661426).

Almost surely, 2^111242505436 is an apocalyptic number.

It is an amenable number.

111242505436 is a deficient number, since it is larger than the sum of its proper divisors (83441431676).

111242505436 is a wasteful number, since it uses less digits than its factorization.

111242505436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364660 (or 1364658 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 111242505436 its reverse (634505242111), we get a palindrome (745747747547).

The spelling of 111242505436 in words is "one hundred eleven billion, two hundred forty-two million, five hundred five thousand, four hundred thirty-six".