20303530540 has 12 divisors (see below), whose sum is σ = 42637414176. Its totient is φ = 8121412208.

The previous prime is 20303530529. The next prime is 20303530601. The reversal of 20303530540 is 4503530302.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507588244 + ... + 507588283.

It is an arithmetic number, because the mean of its divisors is an integer number (3553117848).

Almost surely, 2^20303530540 is an apocalyptic number.

20303530540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20303530540 is an abundant number, since it is smaller than the sum of its proper divisors (22333883636).

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

20303530540 is a wasteful number, since it uses less digits than its factorization.

20303530540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015176536 (or 1015176534 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 25.

The spelling of 20303530540 in words is "twenty billion, three hundred three million, five hundred thirty thousand, five hundred forty".