20520233242252 has 192 divisors, whose sum is σ = 39743960256000. Its totient is φ = 9236574885888.

The previous prime is 20520233242217. The next prime is 20520233242291. The reversal of 20520233242252 is 25224233202502.

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 63 ways as a sum of consecutive naturals, for example, 10275528918 + ... + 10275530914.

It is an arithmetic number, because the mean of its divisors is an integer number (206999793000).

Almost surely, 2^{20520233242252} is an apocalyptic number.

It is an amenable number.

20520233242252 is a deficient number, since it is larger than the sum of its proper divisors (19223727013748).

20520233242252 is a wasteful number, since it uses less digits than its factorization.

20520233242252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648 (or 2646 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 20520233242252 its reverse (25224233202502), we get a palindrome (45744466444754).

The spelling of 20520233242252 in words is "twenty trillion, five hundred twenty billion, two hundred thirty-three million, two hundred forty-two thousand, two hundred fifty-two".