2102000021443 has 16 divisors (see below), whose sum is σ = 2403821629440. Its totient is φ = 1800562701600.

The previous prime is 2102000021437. The next prime is 2102000021461. The reversal of 2102000021443 is 3441200002012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102000021443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102000021443.

It is not an unprimeable number, because it can be changed into a prime (2102000021423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145651438 + ... + 145665868.

It is an arithmetic number, because the mean of its divisors is an integer number (150238851840).

Almost surely, 2^{2102000021443} is an apocalyptic number.

2102000021443 is a deficient number, since it is larger than the sum of its proper divisors (301821607997).

2102000021443 is a wasteful number, since it uses less digits than its factorization.

2102000021443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26298.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2102000021443 its reverse (3441200002012), we get a palindrome (5543200023455).

The spelling of 2102000021443 in words is "two trillion, one hundred two billion, twenty-one thousand, four hundred forty-three".