20430311300 has 72 divisors (see below), whose sum is σ = 52301652480. Its totient is φ = 6778713600.

The previous prime is 20430311299. The next prime is 20430311309. The reversal of 20430311300 is 311303402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20430311309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 449045 + ... + 492444.

It is an arithmetic number, because the mean of its divisors is an integer number (726411840).

Almost surely, 2^20430311300 is an apocalyptic number.

20430311300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20430311300 is an abundant number, since it is smaller than the sum of its proper divisors (31871341180).

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

20430311300 is a wasteful number, since it uses less digits than its factorization.

20430311300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941541 (or 941534 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20430311300 its reverse (311303402), we get a palindrome (20741614702).

The spelling of 20430311300 in words is "twenty billion, four hundred thirty million, three hundred eleven thousand, three hundred".