10645430123 has 4 divisors (see below), whose sum is σ = 10650533040. Its totient is φ = 10640327208.

The previous prime is 10645430119. The next prime is 10645430129. The reversal of 10645430123 is 32103454601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32103454601 = 61 ⋅526286141.

It is a cyclic number.

It is not a de Polignac number, because 10645430123 - 2² = 10645430119 is a prime.

It is a super-2 number, since 2×10645430123² (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 (10645430129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2548328 + ... + 2552501.

It is an arithmetic number, because the mean of its divisors is an integer number (2662633260).

Almost surely, 2^10645430123 is an apocalyptic number.

10645430123 is a deficient number, since it is larger than the sum of its proper divisors (5102917).

10645430123 is an equidigital number, since it uses as much as digits as its factorization.

10645430123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102916.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 10645430123 its reverse (32103454601), we get a palindrome (42748884724).

The spelling of 10645430123 in words is "ten billion, six hundred forty-five million, four hundred thirty thousand, one hundred twenty-three".