20423854330 has 32 divisors (see below), whose sum is σ = 40142770560. Its totient is φ = 7419865920.

The previous prime is 20423854327. The next prime is 20423854397. The reversal of 20423854330 is 3345832402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30747 + ... + 204433.

It is an arithmetic number, because the mean of its divisors is an integer number (1254461580).

Almost surely, 2^20423854330 is an apocalyptic number.

20423854330 is a deficient number, since it is larger than the sum of its proper divisors (19718916230).

20423854330 is a wasteful number, since it uses less digits than its factorization.

20423854330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174774.

The product of its (nonzero) digits is 69120, while the sum is 34.

The spelling of 20423854330 in words is "twenty billion, four hundred twenty-three million, eight hundred fifty-four thousand, three hundred thirty".