10423544531 has 4 divisors (see below), whose sum is σ = 10498534200. Its totient is φ = 10348554864.

The previous prime is 10423544507. The next prime is 10423544561. The reversal of 10423544531 is 13544532401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10423544531 is a prime.

It is a super-2 number, since 2×10423544531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10423544561) 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, 37494626 + ... + 37494903.

It is an arithmetic number, because the mean of its divisors is an integer number (2624633550).

Almost surely, 2^10423544531 is an apocalyptic number.

10423544531 is a deficient number, since it is larger than the sum of its proper divisors (74989669).

10423544531 is an equidigital number, since it uses as much as digits as its factorization.

10423544531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74989668.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 10423544531 in words is "ten billion, four hundred twenty-three million, five hundred forty-four thousand, five hundred thirty-one".