20300312400 has 60 divisors (see below), whose sum is σ = 65028671232. Its totient is φ = 5413416320.

The previous prime is 20300312363. The next prime is 20300312401. The reversal of 20300312400 is 421300302.

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

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20300312400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300312401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8457264 + ... + 8459663.

Almost surely, 2^20300312400 is an apocalyptic number.

20300312400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20300312400 is an abundant number, since it is smaller than the sum of its proper divisors (44728358832).

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

20300312400 is a wasteful number, since it uses less digits than its factorization.

20300312400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16916948 (or 16916937 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20300312400 its reverse (421300302), we get a palindrome (20721612702).

The spelling of 20300312400 in words is "twenty billion, three hundred million, three hundred twelve thousand, four hundred".