20302404224140 has 12 divisors (see below), whose sum is σ = 42635048870736. Its totient is φ = 8120961689648.

The previous prime is 20302404224129. The next prime is 20302404224161. The reversal of 20302404224140 is 4142240420302.

It is a junction number, because it is equal to n+sod(n) for n = 20302404224099 and 20302404224108.

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, 507560105584 + ... + 507560105623.

It is an arithmetic number, because the mean of its divisors is an integer number (3552920739228).

Almost surely, 2^{20302404224140} is an apocalyptic number.

20302404224140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302404224140 is an abundant number, since it is smaller than the sum of its proper divisors (22332644646596).

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

20302404224140 is a wasteful number, since it uses less digits than its factorization.

20302404224140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015120211216 (or 1015120211214 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20302404224140 its reverse (4142240420302), we get a palindrome (24444644644442).

The spelling of 20302404224140 in words is "twenty trillion, three hundred two billion, four hundred four million, two hundred twenty-four thousand, one hundred forty".