1001100001010 has 48 divisors (see below), whose sum is σ = 1871464046400. Its totient is φ = 385553593152.

The previous prime is 1001100001009. The next prime is 1001100001019. The reversal of 1001100001010 is 101000011001.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 1001100000985 and 1001100001003.

It is not an unprimeable number, because it can be changed into a prime (1001100001019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2853401 + ... + 3184979.

It is an arithmetic number, because the mean of its divisors is an integer number (38988834300).

Almost surely, 2^{1001100001010} is an apocalyptic number.

1001100001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001100001010 is a deficient number, since it is larger than the sum of its proper divisors (870364045390).

1001100001010 is a wasteful number, since it uses less digits than its factorization.

1001100001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332003 (or 331974 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 5.

Adding to 1001100001010 its reverse (101000011001), we get a palindrome (1102100012011).

Subtracting from 1001100001010 its reverse (101000011001), we obtain a palindrome (900099990009).

The spelling of 1001100001010 in words is "one trillion, one billion, one hundred million, one thousand, ten".