20305103524 has 12 divisors (see below), whose sum is σ = 37078884864. Its totient is φ = 9711136424.

The previous prime is 20305103503. The next prime is 20305103531. The reversal of 20305103524 is 42530150302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110353732 + ... + 110353915.

It is an arithmetic number, because the mean of its divisors is an integer number (3089907072).

Almost surely, 2^20305103524 is an apocalyptic number.

It is an amenable number.

20305103524 is a deficient number, since it is larger than the sum of its proper divisors (16773781340).

20305103524 is a wasteful number, since it uses less digits than its factorization.

20305103524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220707674 (or 220707672 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20305103524 its reverse (42530150302), we get a palindrome (62835253826).

The spelling of 20305103524 in words is "twenty billion, three hundred five million, one hundred three thousand, five hundred twenty-four".