20424321330 has 32 divisors (see below), whose sum is σ = 56020996224. Its totient is φ = 4668416256.

The previous prime is 20424321329. The next prime is 20424321341. The reversal of 20424321330 is 3312342402.

It is a self number, because there is not a number n which added to its sum of digits gives 20424321330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48629127 + ... + 48629546.

It is an arithmetic number, because the mean of its divisors is an integer number (1750656132).

Almost surely, 2^20424321330 is an apocalyptic number.

20424321330 is an abundant number, since it is smaller than the sum of its proper divisors (35596674894).

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

20424321330 is a wasteful number, since it uses less digits than its factorization.

20424321330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97258690.

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

Adding to 20424321330 its reverse (3312342402), we get a palindrome (23736663732).

The spelling of 20424321330 in words is "twenty billion, four hundred twenty-four million, three hundred twenty-one thousand, three hundred thirty".