20424120040213 has 8 divisors (see below), whose sum is σ = 21500803169600. Its totient is φ = 19347609855168.

The previous prime is 20424120040169. The next prime is 20424120040237. The reversal of 20424120040213 is 31204002142402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20424120040213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424120040813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42993633 + ... + 43466086.

It is an arithmetic number, because the mean of its divisors is an integer number (2687600396200).

Almost surely, 2^{20424120040213} is an apocalyptic number.

It is an amenable number.

20424120040213 is a deficient number, since it is larger than the sum of its proper divisors (1076683129387).

20424120040213 is a wasteful number, since it uses less digits than its factorization.

20424120040213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86472171.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20424120040213 its reverse (31204002142402), we get a palindrome (51628122182615).

The spelling of 20424120040213 in words is "twenty trillion, four hundred twenty-four billion, one hundred twenty million, forty thousand, two hundred thirteen".