10043400423 has 16 divisors (see below), whose sum is σ = 15307101440. Its totient is φ = 5738008896.

The previous prime is 10043400401. The next prime is 10043400427. The reversal of 10043400423 is 32400434001.

It is not a de Polignac number, because 10043400423 - 2¹² = 10043396327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 10043400423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10043400427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77436 + ... + 161502.

It is an arithmetic number, because the mean of its divisors is an integer number (956693840).

Almost surely, 2^10043400423 is an apocalyptic number.

10043400423 is a deficient number, since it is larger than the sum of its proper divisors (5263701017).

10043400423 is an equidigital number, since it uses as much as digits as its factorization.

10043400423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89766.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 10043400423 its reverse (32400434001), we get a palindrome (42443834424).

The spelling of 10043400423 in words is "ten billion, forty-three million, four hundred thousand, four hundred twenty-three".