10555243424431 has 4 divisors (see below), whose sum is σ = 10581830939752. Its totient is φ = 10528655909112.

The previous prime is 10555243424413. The next prime is 10555243424441. The reversal of 10555243424431 is 13442434255501.

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 10555243424431 - 2⁵ = 10555243424399 is a prime.

It is a super-2 number, since 2×10555243424431² (a number of 27 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 (10555243424441) 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, 13293757065 + ... + 13293757858.

It is an arithmetic number, because the mean of its divisors is an integer number (2645457734938).

Almost surely, 2^{10555243424431} is an apocalyptic number.

10555243424431 is a deficient number, since it is larger than the sum of its proper divisors (26587515321).

10555243424431 is an equidigital number, since it uses as much as digits as its factorization.

10555243424431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26587515320.

The product of its (nonzero) digits is 1152000, while the sum is 43.

Adding to 10555243424431 its reverse (13442434255501), we get a palindrome (23997677679932).

The spelling of 10555243424431 in words is "ten trillion, five hundred fifty-five billion, two hundred forty-three million, four hundred twenty-four thousand, four hundred thirty-one".