1001111003200 has 1008 divisors, whose sum is σ = 3327141692160. Its totient is φ = 292336128000.

The previous prime is 1001111003183. The next prime is 1001111003201. The reversal of 1001111003200 is 23001111001.

It is a super-2 number, since 2×1001111003200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1001111003201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1753258915 + ... + 1753259485.

Almost surely, 2^{1001111003200} is an apocalyptic number.

1001111003200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001111003200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663570846080).

1001111003200 is an abundant number, since it is smaller than the sum of its proper divisors (2326030688960).

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

1001111003200 is a wasteful number, since it uses less digits than its factorization.

1001111003200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 1001111003200 its reverse (23001111001), we get a palindrome (1024112114201).

The spelling of 1001111003200 in words is "one trillion, one billion, one hundred eleven million, three thousand, two hundred".