20020113321 has 12 divisors (see below), whose sum is σ = 28904779728. Its totient is φ = 12320069424.

The previous prime is 20020113313. The next prime is 20020113331. The reversal of 20020113321 is 12331102002.

It is not a de Polignac number, because 20020113321 - 2³ = 20020113313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20020113321.

It is not an unprimeable number, because it can be changed into a prime (20020113331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19743195 + ... + 19744208.

It is an arithmetic number, because the mean of its divisors is an integer number (2408731644).

Almost surely, 2^20020113321 is an apocalyptic number.

It is an amenable number.

20020113321 is a deficient number, since it is larger than the sum of its proper divisors (8884666407).

20020113321 is a wasteful number, since it uses less digits than its factorization.

20020113321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39487432 (or 39487419 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20020113321 its reverse (12331102002), we get a palindrome (32351215323).

The spelling of 20020113321 in words is "twenty billion, twenty million, one hundred thirteen thousand, three hundred twenty-one".