20340211430 has 32 divisors (see below), whose sum is σ = 45646606080. Its totient is φ = 6339805920.

The previous prime is 20340211403. The next prime is 20340211433. The reversal of 20340211430 is 3411204302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340211433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13207160 + ... + 13208699.

It is an arithmetic number, because the mean of its divisors is an integer number (1426456440).

Almost surely, 2^20340211430 is an apocalyptic number.

20340211430 is an abundant number, since it is smaller than the sum of its proper divisors (25306394650).

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

20340211430 is a wasteful number, since it uses less digits than its factorization.

20340211430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26415884.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20340211430 its reverse (3411204302), we get a palindrome (23751415732).

The spelling of 20340211430 in words is "twenty billion, three hundred forty million, two hundred eleven thousand, four hundred thirty".