20130021442 has 8 divisors (see below), whose sum is σ = 30577248000. Its totient is φ = 9937605444.

The previous prime is 20130021413. The next prime is 20130021451. The reversal of 20130021442 is 24412003102.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 63702442 + ... + 63702757.

It is an arithmetic number, because the mean of its divisors is an integer number (3822156000).

Almost surely, 2^20130021442 is an apocalyptic number.

20130021442 is a deficient number, since it is larger than the sum of its proper divisors (10447226558).

20130021442 is a wasteful number, since it uses less digits than its factorization.

20130021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127405280.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20130021442 its reverse (24412003102), we get a palindrome (44542024544).

The spelling of 20130021442 in words is "twenty billion, one hundred thirty million, twenty-one thousand, four hundred forty-two".