10521334443 has 4 divisors (see below), whose sum is σ = 14028445928. Its totient is φ = 7014222960.

The previous prime is 10521334441. The next prime is 10521334451. The reversal of 10521334443 is 34443312501.

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

It is not a de Polignac number, because 10521334443 - 2¹ = 10521334441 is a prime.

It is a super-2 number, since 2×10521334443² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10521334443.

It is not an unprimeable number, because it can be changed into a prime (10521334441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1753555738 + ... + 1753555743.

It is an arithmetic number, because the mean of its divisors is an integer number (3507111482).

Almost surely, 2^10521334443 is an apocalyptic number.

10521334443 is a deficient number, since it is larger than the sum of its proper divisors (3507111485).

10521334443 is an equidigital number, since it uses as much as digits as its factorization.

10521334443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507111484.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 10521334443 its reverse (34443312501), we get a palindrome (44964646944).

It can be divided in two parts, 105213 and 34443, that added together give a triangular number (139656 = T₅₂₈).

The spelling of 10521334443 in words is "ten billion, five hundred twenty-one million, three hundred thirty-four thousand, four hundred forty-three".