20033122033013 has 4 divisors (see below), whose sum is σ = 20033141772588. Its totient is φ = 20033102293440.

The previous prime is 20033122032961. The next prime is 20033122033097. The reversal of 20033122033013 is 31033022133002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19263514116484 + 769607916529 = 4389022^2 + 877273^2 .

It is a cyclic number.

It is not a de Polignac number, because 20033122033013 - 2¹² = 20033122028917 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 20033122033013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033122033513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8259956 + ... + 10406397.

It is an arithmetic number, because the mean of its divisors is an integer number (5008285443147).

Almost surely, 2^{20033122033013} is an apocalyptic number.

It is an amenable number.

20033122033013 is a deficient number, since it is larger than the sum of its proper divisors (19739575).

20033122033013 is a wasteful number, since it uses less digits than its factorization.

20033122033013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19739574.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20033122033013 its reverse (31033022133002), we get a palindrome (51066144166015).

The spelling of 20033122033013 in words is "twenty trillion, thirty-three billion, one hundred twenty-two million, thirty-three thousand, thirteen".