20042440130102 has 32 divisors (see below), whose sum is σ = 32743628295840. Its totient is φ = 9145414460160.

The previous prime is 20042440130101. The next prime is 20042440130107. The reversal of 20042440130102 is 20103104424002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042440130101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20773133 + ... + 21716535.

It is an arithmetic number, because the mean of its divisors is an integer number (1023238384245).

Almost surely, 2^{20042440130102} is an apocalyptic number.

20042440130102 is a deficient number, since it is larger than the sum of its proper divisors (12701188165738).

20042440130102 is a wasteful number, since it uses less digits than its factorization.

20042440130102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952688.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20042440130102 its reverse (20103104424002), we get a palindrome (40145544554104).

The spelling of 20042440130102 in words is "twenty trillion, forty-two billion, four hundred forty million, one hundred thirty thousand, one hundred two".