111201011000000 has 98 divisors (see below), whose sum is σ = 275827104602244. Its totient is φ = 44480404000000.

The previous prime is 111201010999889. The next prime is 111201011000003. The reversal of 111201011000000 is 110102111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (111201011000003) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 54600506 + ... + 56600505.

Almost surely, 2^{111201011000000} is an apocalyptic number.

111201011000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201011000000 is an abundant number, since it is smaller than the sum of its proper divisors (164626093602244).

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

111201011000000 is an frugal number, since it uses more digits than its factorization.

111201011000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111201053 (or 111201018 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111201011000000 its reverse (110102111), we get a palindrome (111201121102111).

The spelling of 111201011000000 in words is "one hundred eleven trillion, two hundred one billion, eleven million", and thus it is an aban number.