20031122121001 has 8 divisors (see below), whose sum is σ = 20902124827584. Its totient is φ = 19160126443920.

The previous prime is 20031122120983. The next prime is 20031122121071. The reversal of 20031122121001 is 10012122113002.

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 20031122121001 - 2¹⁵ = 20031122088233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20031122121071) 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, 4546911 + ... + 7793371.

It is an arithmetic number, because the mean of its divisors is an integer number (2612765603448).

Almost surely, 2^{20031122121001} is an apocalyptic number.

It is an amenable number.

20031122121001 is a deficient number, since it is larger than the sum of its proper divisors (871002706583).

20031122121001 is a wasteful number, since it uses less digits than its factorization.

20031122121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514751.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20031122121001 its reverse (10012122113002), we get a palindrome (30043244234003).

The spelling of 20031122121001 in words is "twenty trillion, thirty-one billion, one hundred twenty-two million, one hundred twenty-one thousand, one".