20530442300 has 18 divisors (see below), whose sum is σ = 44551060008. Its totient is φ = 8212176880.

The previous prime is 20530442299. The next prime is 20530442333. The reversal of 20530442300 is 324403502.

It is a super-2 number, since 2×20530442300² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102652112 + ... + 102652311.

Almost surely, 2^20530442300 is an apocalyptic number.

20530442300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20530442300 is an abundant number, since it is smaller than the sum of its proper divisors (24020617708).

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

20530442300 is a wasteful number, since it uses less digits than its factorization.

20530442300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205304437 (or 205304430 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

Adding to 20530442300 its reverse (324403502), we get a palindrome (20854845802).

The spelling of 20530442300 in words is "twenty billion, five hundred thirty million, four hundred forty-two thousand, three hundred".