10532421421 has 4 divisors (see below), whose sum is σ = 10535735644. Its totient is φ = 10529107200.

The previous prime is 10532421413. The next prime is 10532421437. The reversal of 10532421421 is 12412423501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 931165225 + 9601256196 = 30515^2 + 97986^2 .

It is a cyclic number.

It is not a de Polignac number, because 10532421421 - 2³ = 10532421413 is a prime.

It is a super-2 number, since 2×10532421421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10532421491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652340 + ... + 1658701.

It is an arithmetic number, because the mean of its divisors is an integer number (2633933911).

Almost surely, 2^10532421421 is an apocalyptic number.

It is an amenable number.

10532421421 is a deficient number, since it is larger than the sum of its proper divisors (3314223).

10532421421 is an equidigital number, since it uses as much as digits as its factorization.

10532421421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314222.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 10532421421 its reverse (12412423501), we get a palindrome (22944844922).

The spelling of 10532421421 in words is "ten billion, five hundred thirty-two million, four hundred twenty-one thousand, four hundred twenty-one".