1001001001010 has 16 divisors (see below), whose sum is σ = 1801818579096. Its totient is φ = 400396672128.

The previous prime is 1001001000947. The next prime is 1001001001037. The reversal of 1001001001010 is 101001001001.

It can be written as a sum of positive squares in 4 ways, for example, as 994732953769 + 6268047241 = 997363^2 + 79171^2 .

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 = 1001001000985 and 1001001001003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834422 + ... + 1642638.

Almost surely, 2^{1001001001010} is an apocalyptic number.

1001001001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001001001010 is a deficient number, since it is larger than the sum of its proper divisors (800817578086).

1001001001010 is a wasteful number, since it uses less digits than its factorization.

1001001001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932077.

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

Adding to 1001001001010 its reverse (101001001001), we get a palindrome (1102002002011).

Subtracting from 1001001001010 its reverse (101001001001), we obtain a palindrome (900000000009).

The spelling of 1001001001010 in words is "one trillion, one billion, one million, one thousand, ten".