21024041210443 has 4 divisors (see below), whose sum is σ = 21024670875808. Its totient is φ = 21023411545080.

The previous prime is 21024041210441. The next prime is 21024041210453. The reversal of 21024041210443 is 34401214042012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21024041210443 - 2¹ = 21024041210441 is a prime.

It is a super-2 number, since 2×21024041210443² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21024041210441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314782596 + ... + 314849377.

It is an arithmetic number, because the mean of its divisors is an integer number (5256167718952).

Almost surely, 2^{21024041210443} is an apocalyptic number.

21024041210443 is a deficient number, since it is larger than the sum of its proper divisors (629665365).

21024041210443 is an equidigital number, since it uses as much as digits as its factorization.

21024041210443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629665364.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21024041210443 its reverse (34401214042012), we get a palindrome (55425255252455).

The spelling of 21024041210443 in words is "twenty-one trillion, twenty-four billion, forty-one million, two hundred ten thousand, four hundred forty-three".