1001230111200 has 144 divisors (see below), whose sum is σ = 3555277197696. Its totient is φ = 242722444800.

The previous prime is 1001230111177. The next prime is 1001230111229. The reversal of 1001230111200 is 21110321001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18936292 + ... + 18989091.

It is an arithmetic number, because the mean of its divisors is an integer number (24689424984).

Almost surely, 2^{1001230111200} is an apocalyptic number.

1001230111200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001230111200 is an abundant number, since it is smaller than the sum of its proper divisors (2554047086496).

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

1001230111200 is a wasteful number, since it uses less digits than its factorization.

1001230111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37925417 (or 37925404 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1001230111200 its reverse (21110321001), we get a palindrome (1022340432201).

The spelling of 1001230111200 in words is "one trillion, one billion, two hundred thirty million, one hundred eleven thousand, two hundred".