20130041442 has 16 divisors (see below), whose sum is σ = 46011523392. Its totient is φ = 5751440400.

The previous prime is 20130041431. The next prime is 20130041447. The reversal of 20130041442 is 24414003102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20130041447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 239643309 + ... + 239643392.

It is an arithmetic number, because the mean of its divisors is an integer number (2875720212).

Almost surely, 2^20130041442 is an apocalyptic number.

20130041442 is an abundant number, since it is smaller than the sum of its proper divisors (25881481950).

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

20130041442 is a wasteful number, since it uses less digits than its factorization.

20130041442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479286713.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20130041442 its reverse (24414003102), we get a palindrome (44544044544).

The spelling of 20130041442 in words is "twenty billion, one hundred thirty million, forty-one thousand, four hundred forty-two".