1001001101100 has 864 divisors, whose sum is σ = 4086030477312. Its totient is φ = 185794560000.

The previous prime is 1001001101071. The next prime is 1001001101147. The reversal of 1001001101100 is 11011001001.

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 an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 65157420 + ... + 65172780.

Almost surely, 2^{1001001101100} is an apocalyptic number.

1001001101100 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 1001001101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2043015238656).

1001001101100 is an abundant number, since it is smaller than the sum of its proper divisors (3085029376212).

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

1001001101100 is a wasteful number, since it uses less digits than its factorization.

1001001101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15447 (or 15433 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 6.

Adding to 1001001101100 its reverse (11011001001), we get a palindrome (1012012102101).

The spelling of 1001001101100 in words is "one trillion, one billion, one million, one hundred one thousand, one hundred".