20300340354 has 32 divisors (see below), whose sum is σ = 48842926080. Its totient is φ = 5494828752.

The previous prime is 20300340341. The next prime is 20300340391. The reversal of 20300340354 is 45304300302.

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 15 ways as a sum of consecutive naturals, for example, 12718714 + ... + 12720309.

It is an arithmetic number, because the mean of its divisors is an integer number (1526341440).

Almost surely, 2^20300340354 is an apocalyptic number.

20300340354 is an abundant number, since it is smaller than the sum of its proper divisors (28542585726).

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

20300340354 is a wasteful number, since it uses less digits than its factorization.

20300340354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25439054.

The product of its (nonzero) digits is 4320, while the sum is 24.

Adding to 20300340354 its reverse (45304300302), we get a palindrome (65604640656).

The spelling of 20300340354 in words is "twenty billion, three hundred million, three hundred forty thousand, three hundred fifty-four".