20203120522 has 8 divisors (see below), whose sum is σ = 32635810116. Its totient is φ = 9324517152.

The previous prime is 20203120499. The next prime is 20203120529. The reversal of 20203120522 is 22502130202.

It can be written as a sum of positive squares in 2 ways, for example, as 18205835041 + 1997285481 = 134929^2 + 44691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20203120522.

It is not an unprimeable number, because it can be changed into a prime (20203120529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388521523 + ... + 388521574.

Almost surely, 2^20203120522 is an apocalyptic number.

20203120522 is a deficient number, since it is larger than the sum of its proper divisors (12432689594).

20203120522 is a wasteful number, since it uses less digits than its factorization.

20203120522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777043112.

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 20203120522 its reverse (22502130202), we get a palindrome (42705250724).

The spelling of 20203120522 in words is "twenty billion, two hundred three million, one hundred twenty thousand, five hundred twenty-two".