20302122131332 has 12 divisors (see below), whose sum is σ = 35528779475980. Its totient is φ = 10151042281056.

The previous prime is 20302122131273. The next prime is 20302122131341. The reversal of 20302122131332 is 23313122120302.

It can be written as a sum of positive squares in 2 ways, for example, as 5272047656836 + 15030074474496 = 2296094^2 + 3876864^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20302122131297 and 20302122131306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105607 + ... + 6711022.

Almost surely, 2^{20302122131332} is an apocalyptic number.

It is an amenable number.

20302122131332 is a deficient number, since it is larger than the sum of its proper divisors (15226657344648).

20302122131332 is a wasteful number, since it uses less digits than its factorization.

20302122131332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9392310 (or 9392308 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20302122131332 its reverse (23313122120302), we get a palindrome (43615244251634).

The spelling of 20302122131332 in words is "twenty trillion, three hundred two billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred thirty-two".