20431550034300 has 72 divisors (see below), whose sum is σ = 59412346672000. Its totient is φ = 5421034365120.

The previous prime is 20431550034283. The next prime is 20431550034319. The reversal of 20431550034300 is 343005513402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171058810 + ... + 171178209.

Almost surely, 2^{20431550034300} is an apocalyptic number.

20431550034300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20431550034300 is an abundant number, since it is smaller than the sum of its proper divisors (38980796637700).

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

20431550034300 is a wasteful number, since it uses less digits than its factorization.

20431550034300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342237235 (or 342237228 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 20431550034300 its reverse (343005513402), we get a palindrome (20774555547702).

The spelling of 20431550034300 in words is "twenty trillion, four hundred thirty-one billion, five hundred fifty million, thirty-four thousand, three hundred".