20420144403241 has 8 divisors (see below), whose sum is σ = 22280982777504. Its totient is φ = 18560049630720.

The previous prime is 20420144403233. The next prime is 20420144403413. The reversal of 20420144403241 is 14230444102402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20420144403241 - 2³ = 20420144403233 is a prime.

It is a super-2 number, since 2×20420144403241² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20420144403541) 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, 185843011 + ... + 185952856.

It is an arithmetic number, because the mean of its divisors is an integer number (2785122847188).

Almost surely, 2^{20420144403241} is an apocalyptic number.

It is an amenable number.

20420144403241 is a deficient number, since it is larger than the sum of its proper divisors (1860838374263).

20420144403241 is a wasteful number, since it uses less digits than its factorization.

20420144403241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371800871.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 20420144403241 its reverse (14230444102402), we get a palindrome (34650588505643).

The spelling of 20420144403241 in words is "twenty trillion, four hundred twenty billion, one hundred forty-four million, four hundred three thousand, two hundred forty-one".