20503422024 has 64 divisors (see below), whose sum is σ = 53730008640. Its totient is φ = 6512701440.

The previous prime is 20503422011. The next prime is 20503422029. The reversal of 20503422024 is 42022430502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20503421985 and 20503422003.

It is not an unprimeable number, because it can be changed into a prime (20503422029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199977 + ... + 284600.

It is an arithmetic number, because the mean of its divisors is an integer number (839531385).

Almost surely, 2^20503422024 is an apocalyptic number.

20503422024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20503422024 is an abundant number, since it is smaller than the sum of its proper divisors (33226586616).

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

20503422024 is a wasteful number, since it uses less digits than its factorization.

20503422024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484670 (or 484666 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 20503422024 its reverse (42022430502), we get a palindrome (62525852526).

The spelling of 20503422024 in words is "twenty billion, five hundred three million, four hundred twenty-two thousand, twenty-four".