20003053051321 has 8 divisors (see below), whose sum is σ = 21076713370400. Its totient is φ = 18931479537600.

The previous prime is 20003053051291. The next prime is 20003053051343. The reversal of 20003053051321 is 12315035030002.

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 20003053051321 - 2³⁹ = 19453297237433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20003053057321) 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, 521681655 + ... + 521719996.

It is an arithmetic number, because the mean of its divisors is an integer number (2634589171300).

Almost surely, 2^{20003053051321} is an apocalyptic number.

It is an amenable number.

20003053051321 is a deficient number, since it is larger than the sum of its proper divisors (1073660319079).

20003053051321 is a wasteful number, since it uses less digits than its factorization.

20003053051321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043402679.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 20003053051321 its reverse (12315035030002), we get a palindrome (32318088081323).

The spelling of 20003053051321 in words is "twenty trillion, three billion, fifty-three million, fifty-one thousand, three hundred twenty-one".