20340300000 has 144 divisors (see below), whose sum is σ = 66738322224. Its totient is φ = 5424000000.

The previous prime is 20340299999. The next prime is 20340300011. The reversal of 20340300000 is 304302.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 266100 + ... + 333900.

It is an arithmetic number, because the mean of its divisors is an integer number (463460571).

Almost surely, 2^20340300000 is an apocalyptic number.

20340300000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20340300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33369161112).

20340300000 is an abundant number, since it is smaller than the sum of its proper divisors (46398022224).

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

20340300000 is an frugal number, since it uses more digits than its factorization.

20340300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67839 (or 67811 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 20340300000 its reverse (304302), we get a palindrome (20340604302).

The spelling of 20340300000 in words is "twenty billion, three hundred forty million, three hundred thousand".