20102131333230 has 16 divisors (see below), whose sum is σ = 48245115199824. Its totient is φ = 5360568355520.

The previous prime is 20102131333153. The next prime is 20102131333231. The reversal of 20102131333230 is 3233313120102.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20102131333230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102131333231) 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, 335035522191 + ... + 335035522250.

It is an arithmetic number, because the mean of its divisors is an integer number (3015319699989).

Almost surely, 2^{20102131333230} is an apocalyptic number.

20102131333230 is an abundant number, since it is smaller than the sum of its proper divisors (28142983866594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20102131333230 is a wasteful number, since it uses less digits than its factorization.

20102131333230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670071044451.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20102131333230 its reverse (3233313120102), we get a palindrome (23335444453332).

The spelling of 20102131333230 in words is "twenty trillion, one hundred two billion, one hundred thirty-one million, three hundred thirty-three thousand, two hundred thirty".