1001242020001 has 8 divisors (see below), whose sum is σ = 1002855448584. Its totient is φ = 999629890560.

The previous prime is 1001242019963. The next prime is 1001242020061. The reversal of 1001242020001 is 1000202421001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 381369237601 + 619872782400 = 617551^2 + 787320^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001242020001 - 2²⁹ = 1000705149089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001242020061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223781 + ... + 1870861.

It is an arithmetic number, because the mean of its divisors is an integer number (125356931073).

Almost surely, 2^{1001242020001} is an apocalyptic number.

It is an amenable number.

1001242020001 is a deficient number, since it is larger than the sum of its proper divisors (1613428583).

1001242020001 is a wasteful number, since it uses less digits than its factorization.

1001242020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649571.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1001242020001 its reverse (1000202421001), we get a palindrome (2001444441002).

The spelling of 1001242020001 in words is "one trillion, one billion, two hundred forty-two million, twenty thousand, one".