1001011001010 has 128 divisors (see below), whose sum is σ = 2470744505088. Its totient is φ = 259459200000.

The previous prime is 1001011001009. The next prime is 1001011001017. The reversal of 1001011001010 is 101001101001.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a self number, because there is not a number n which added to its sum of digits gives 1001011001010.

It is not an unprimeable number, because it can be changed into a prime (1001011001017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101097060 + ... + 101106960.

It is an arithmetic number, because the mean of its divisors is an integer number (19302691446).

Almost surely, 2^{1001011001010} is an apocalyptic number.

1001011001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001011001010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1235372252544).

1001011001010 is an abundant number, since it is smaller than the sum of its proper divisors (1469733504078).

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

1001011001010 is a wasteful number, since it uses less digits than its factorization.

1001011001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10620.

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

Adding to 1001011001010 its reverse (101001101001), we get a palindrome (1102012102011).

Subtracting from 1001011001010 its reverse (101001101001), we obtain a palindrome (900009900009).

The spelling of 1001011001010 in words is "one trillion, one billion, eleven million, one thousand, ten".