20011322331001 has 8 divisors (see below), whose sum is σ = 20105620691400. Its totient is φ = 19917171429120.

The previous prime is 20011322330941. The next prime is 20011322331029. The reversal of 20011322331001 is 10013322311002.

It can be written as a sum of positive squares in 4 ways, for example, as 366570913401 + 19644751417600 = 605451^2 + 4432240^2 .

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 20011322331001 - 2¹¹ = 20011322328953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20011322331001.

It is not an unprimeable number, because it can be changed into a prime (20011322331401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36592570 + ... + 37135411.

It is an arithmetic number, because the mean of its divisors is an integer number (2513202586425).

Almost surely, 2^{20011322331001} is an apocalyptic number.

It is an amenable number.

20011322331001 is a deficient number, since it is larger than the sum of its proper divisors (94298360399).

20011322331001 is a wasteful number, since it uses less digits than its factorization.

20011322331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73729259.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20011322331001 its reverse (10013322311002), we get a palindrome (30024644642003).

The spelling of 20011322331001 in words is "twenty trillion, eleven billion, three hundred twenty-two million, three hundred thirty-one thousand, one".