10534443421 has 4 divisors (see below), whose sum is σ = 10546374592. Its totient is φ = 10522512252.

The previous prime is 10534443407. The next prime is 10534443427. The reversal of 10534443421 is 12434443501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10534443421 - 2²¹ = 10532346269 is a prime.

It is a super-2 number, since 2×10534443421² (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 (10534443427) 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, 5964261 + ... + 5966026.

It is an arithmetic number, because the mean of its divisors is an integer number (2636593648).

Almost surely, 2^10534443421 is an apocalyptic number.

It is an amenable number.

10534443421 is a deficient number, since it is larger than the sum of its proper divisors (11931171).

10534443421 is an equidigital number, since it uses as much as digits as its factorization.

10534443421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11931170.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 10534443421 its reverse (12434443501), we get a palindrome (22968886922).

The spelling of 10534443421 in words is "ten billion, five hundred thirty-four million, four hundred forty-three thousand, four hundred twenty-one".