10403444431 has 4 divisors (see below), whose sum is σ = 10405381032. Its totient is φ = 10401507832.

The previous prime is 10403444419. The next prime is 10403444459. The reversal of 10403444431 is 13444430401.

It is a happy number.

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 10403444431 - 2⁵ = 10403444399 is a prime.

It is a super-2 number, since 2×10403444431² (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 10403444431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10403484431) 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, 960220 + ... + 970993.

It is an arithmetic number, because the mean of its divisors is an integer number (2601345258).

Almost surely, 2^10403444431 is an apocalyptic number.

10403444431 is a deficient number, since it is larger than the sum of its proper divisors (1936601).

10403444431 is an equidigital number, since it uses as much as digits as its factorization.

10403444431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936600.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 10403444431 its reverse (13444430401), we get a palindrome (23847874832).

The spelling of 10403444431 in words is "ten billion, four hundred three million, four hundred forty-four thousand, four hundred thirty-one".