20420532232441 has 12 divisors (see below), whose sum is σ = 23511123995184. Its totient is φ = 17587061249400.

The previous prime is 20420532232439. The next prime is 20420532232453. The reversal of 20420532232441 is 14423223502402.

It is not a de Polignac number, because 20420532232441 - 2¹ = 20420532232439 is a prime.

It is a super-2 number, since 2×20420532232441² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20420532232397 and 20420532232406.

It is not an unprimeable number, because it can be changed into a prime (20420532232241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2571203815 + ... + 2571211756.

It is an arithmetic number, because the mean of its divisors is an integer number (1959260332932).

Almost surely, 2^{20420532232441} is an apocalyptic number.

It is an amenable number.

20420532232441 is a deficient number, since it is larger than the sum of its proper divisors (3090591762743).

20420532232441 is a wasteful number, since it uses less digits than its factorization.

20420532232441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142415620 (or 5142415601 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 20420532232441 its reverse (14423223502402), we get a palindrome (34843755734843).

The spelling of 20420532232441 in words is "twenty trillion, four hundred twenty billion, five hundred thirty-two million, two hundred thirty-two thousand, four hundred forty-one".