20302131323332 has 48 divisors (see below), whose sum is σ = 38406566016000. Its totient is φ = 9361522755200.

The previous prime is 20302131323329. The next prime is 20302131323359. The reversal of 20302131323332 is 23332313120302.

It is a self number, because there is not a number n which added to its sum of digits gives 20302131323332.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3557332 + ... + 7297867.

It is an arithmetic number, because the mean of its divisors is an integer number (800136792000).

Almost surely, 2^{20302131323332} is an apocalyptic number.

It is an amenable number.

20302131323332 is a deficient number, since it is larger than the sum of its proper divisors (18104434692668).

20302131323332 is a wasteful number, since it uses less digits than its factorization.

20302131323332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10855956 (or 10855954 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 20302131323332 its reverse (23332313120302), we get a palindrome (43634444443634).

The spelling of 20302131323332 in words is "twenty trillion, three hundred two billion, one hundred thirty-one million, three hundred twenty-three thousand, three hundred thirty-two".