20303530542 has 48 divisors (see below), whose sum is σ = 47714782752. Its totient is φ = 6214371840.

The previous prime is 20303530529. The next prime is 20303530601. The reversal of 20303530542 is 24503530302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 796618 + ... + 821709.

It is an arithmetic number, because the mean of its divisors is an integer number (994057974).

Almost surely, 2^20303530542 is an apocalyptic number.

20303530542 is an abundant number, since it is smaller than the sum of its proper divisors (27411252210).

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

20303530542 is a wasteful number, since it uses less digits than its factorization.

20303530542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618393 (or 1618390 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The spelling of 20303530542 in words is "twenty billion, three hundred three million, five hundred thirty thousand, five hundred forty-two".