20102333121 has 24 divisors (see below), whose sum is σ = 31385734016. Its totient is φ = 12324998880.

The previous prime is 20102333113. The next prime is 20102333189. The reversal of 20102333121 is 12133320102.

It is not a de Polignac number, because 20102333121 - 2³ = 20102333113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20102333094 and 20102333103.

It is not an unprimeable number, because it can be changed into a prime (20102333221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285295 + ... + 348708.

Almost surely, 2^20102333121 is an apocalyptic number.

It is an amenable number.

20102333121 is a deficient number, since it is larger than the sum of its proper divisors (11283400895).

20102333121 is a wasteful number, since it uses less digits than its factorization.

20102333121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634293 (or 634290 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20102333121 its reverse (12133320102), we get a palindrome (32235653223).

The spelling of 20102333121 in words is "twenty billion, one hundred two million, three hundred thirty-three thousand, one hundred twenty-one".