111200001000 has 128 divisors (see below), whose sum is σ = 378484479360. Its totient is φ = 26957568000.

The previous prime is 111200000963. The next prime is 111200001023. The reversal of 111200001000 is 100002111.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a self number, because there is not a number n which added to its sum of digits gives 111200001000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1651849 + ... + 1717848.

It is an arithmetic number, because the mean of its divisors is an integer number (2956909995).

Almost surely, 2^111200001000 is an apocalyptic number.

111200001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200001000 is an abundant number, since it is smaller than the sum of its proper divisors (267284478360).

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

111200001000 is a wasteful number, since it uses less digits than its factorization.

111200001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369732 (or 3369718 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 111200001000 its reverse (100002111), we get a palindrome (111300003111).

The spelling of 111200001000 in words is "one hundred eleven billion, two hundred million, one thousand".