20130242021441 has 4 divisors (see below), whose sum is σ = 20510057908692. Its totient is φ = 19750426134192.

The previous prime is 20130242021437. The next prime is 20130242021507. The reversal of 20130242021441 is 14412024203102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6434846890000 + 13695395131441 = 2536700^2 + 3700729^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130242021441 - 2² = 20130242021437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20130242021441.

It is not an unprimeable number, because it can be changed into a prime (20130242021431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189907943546 + ... + 189907943651.

It is an arithmetic number, because the mean of its divisors is an integer number (5127514477173).

Almost surely, 2^{20130242021441} is an apocalyptic number.

It is an amenable number.

20130242021441 is a deficient number, since it is larger than the sum of its proper divisors (379815887251).

20130242021441 is an equidigital number, since it uses as much as digits as its factorization.

20130242021441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379815887250.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 20130242021441 its reverse (14412024203102), we get a palindrome (34542266224543).

The spelling of 20130242021441 in words is "twenty trillion, one hundred thirty billion, two hundred forty-two million, twenty-one thousand, four hundred forty-one".