111199001256 has 80 divisors (see below), whose sum is σ = 355954489440. Its totient is φ = 31771141920.

The previous prime is 111199001113. The next prime is 111199001269. The reversal of 111199001256 is 652100991111.

111199001256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 111199001256.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12252850 + ... + 12261921.

It is an arithmetic number, because the mean of its divisors is an integer number (4449431118).

Almost surely, 2^111199001256 is an apocalyptic number.

It is an amenable number.

111199001256 is an abundant number, since it is smaller than the sum of its proper divisors (244755488184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111199001256 is a wasteful number, since it uses less digits than its factorization.

111199001256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24514796 (or 24514783 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 36.

Adding to 111199001256 its reverse (652100991111), we get a palindrome (763299992367).

The spelling of 111199001256 in words is "one hundred eleven billion, one hundred ninety-nine million, one thousand, two hundred fifty-six".