20503240332 has 48 divisors (see below), whose sum is σ = 49686981120. Its totient is φ = 6575616832.

The previous prime is 20503240327. The next prime is 20503240333. The reversal of 20503240332 is 23304230502.

It is a super-2 number, since 2×20503240332² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20503240333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274803 + ... + 341354.

It is an arithmetic number, because the mean of its divisors is an integer number (1035145440).

Almost surely, 2^20503240332 is an apocalyptic number.

It is an amenable number.

20503240332 is an abundant number, since it is smaller than the sum of its proper divisors (29183740788).

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

20503240332 is a wasteful number, since it uses less digits than its factorization.

20503240332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616270 (or 616268 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

Adding to 20503240332 its reverse (23304230502), we get a palindrome (43807470834).

The spelling of 20503240332 in words is "twenty billion, five hundred three million, two hundred forty thousand, three hundred thirty-two".