20313011204400 has 60 divisors (see below), whose sum is σ = 65069345895272. Its totient is φ = 5416802987520.

The previous prime is 20313011204389. The next prime is 20313011204477. The reversal of 20313011204400 is 440211031302.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8463753469 + ... + 8463755868.

Almost surely, 2^{20313011204400} is an apocalyptic number.

20313011204400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313011204400 is an abundant number, since it is smaller than the sum of its proper divisors (44756334690872).

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

20313011204400 is a wasteful number, since it uses less digits than its factorization.

20313011204400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16927509358 (or 16927509347 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20313011204400 its reverse (440211031302), we get a palindrome (20753222235702).

The spelling of 20313011204400 in words is "twenty trillion, three hundred thirteen billion, eleven million, two hundred four thousand, four hundred".