2101443443506 has 24 divisors (see below), whose sum is σ = 3467964487680. Its totient is φ = 954322695480.

The previous prime is 2101443443467. The next prime is 2101443443507. The reversal of 2101443443506 is 6053443441012.

It is not an unprimeable number, because it can be changed into a prime (2101443443507) 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, 3731266 + ... + 4257373.

It is an arithmetic number, because the mean of its divisors is an integer number (144498520320).

Almost surely, 2^{2101443443506} is an apocalyptic number.

2101443443506 is a deficient number, since it is larger than the sum of its proper divisors (1366521044174).

2101443443506 is a wasteful number, since it uses less digits than its factorization.

2101443443506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989750 (or 7989739 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 2101443443506 its reverse (6053443441012), we get a palindrome (8154886884518).

The spelling of 2101443443506 in words is "two trillion, one hundred one billion, four hundred forty-three million, four hundred forty-three thousand, five hundred six".