20001302342340 has 96 divisors (see below), whose sum is σ = 61724731549824. Its totient is φ = 4798812917760.

The previous prime is 20001302342327. The next prime is 20001302342369. The reversal of 20001302342340 is 4324320310002.

It is a self number, because there is not a number n which added to its sum of digits gives 20001302342340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156147339 + ... + 156275378.

It is an arithmetic number, because the mean of its divisors is an integer number (642965953644).

Almost surely, 2^{20001302342340} is an apocalyptic number.

20001302342340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001302342340 is an abundant number, since it is smaller than the sum of its proper divisors (41723429207484).

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

20001302342340 is a wasteful number, since it uses less digits than its factorization.

20001302342340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312422837 (or 312422835 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20001302342340 its reverse (4324320310002), we get a palindrome (24325622652342).

The spelling of 20001302342340 in words is "twenty trillion, one billion, three hundred two million, three hundred forty-two thousand, three hundred forty".