20130233321 has 16 divisors (see below), whose sum is σ = 22135420800. Its totient is φ = 18154819200.

The previous prime is 20130233317. The next prime is 20130233359. The reversal of 20130233321 is 12333203102.

It is a cyclic number.

It is not a de Polignac number, because 20130233321 - 2² = 20130233317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20130233293 and 20130233302.

It is not an unprimeable number, because it can be changed into a prime (20130233021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693620 + ... + 722058.

It is an arithmetic number, because the mean of its divisors is an integer number (1383463800).

Almost surely, 2^20130233321 is an apocalyptic number.

It is an amenable number.

20130233321 is a deficient number, since it is larger than the sum of its proper divisors (2005187479).

20130233321 is a wasteful number, since it uses less digits than its factorization.

20130233321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28960.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20130233321 its reverse (12333203102), we get a palindrome (32463436423).

The spelling of 20130233321 in words is "twenty billion, one hundred thirty million, two hundred thirty-three thousand, three hundred twenty-one".