20303040434320 has 80 divisors (see below), whose sum is σ = 54482218414848. Its totient is φ = 6892121203200.

The previous prime is 20303040434311. The next prime is 20303040434357. The reversal of 20303040434320 is 2343404030302.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×20303040434320³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179425764 + ... + 179538883.

Almost surely, 2^{20303040434320} is an apocalyptic number.

20303040434320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20303040434320 is an abundant number, since it is smaller than the sum of its proper divisors (34179177980528).

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

20303040434320 is a wasteful number, since it uses less digits than its factorization.

20303040434320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358964768 (or 358964762 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 20303040434320 its reverse (2343404030302), we get a palindrome (22646444464622).

The spelling of 20303040434320 in words is "twenty trillion, three hundred three billion, forty million, four hundred thirty-four thousand, three hundred twenty".