20530444124443 has 8 divisors (see below), whose sum is σ = 22397992409520. Its totient is φ = 18663086551680.

The previous prime is 20530444124429. The next prime is 20530444124479. The reversal of 20530444124443 is 34442144403502.

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-20530444124443 is a prime.

It is a super-2 number, since 2×20530444124443² (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 = 20530444124396 and 20530444124405.

It is not an unprimeable number, because it can be changed into a prime (20530444124423) 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, 47452938 + ... + 47883631.

It is an arithmetic number, because the mean of its divisors is an integer number (2799749051190).

Almost surely, 2^{20530444124443} is an apocalyptic number.

20530444124443 is a deficient number, since it is larger than the sum of its proper divisors (1867548285077).

20530444124443 is a wasteful number, since it uses less digits than its factorization.

20530444124443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95356157.

The product of its (nonzero) digits is 737280, while the sum is 40.

Adding to 20530444124443 its reverse (34442144403502), we get a palindrome (54972588527945).

The spelling of 20530444124443 in words is "twenty trillion, five hundred thirty billion, four hundred forty-four million, one hundred twenty-four thousand, four hundred forty-three".