10661427323 has 4 divisors (see below), whose sum is σ = 10685172600. Its totient is φ = 10637682048.

The previous prime is 10661427319. The next prime is 10661427347. The reversal of 10661427323 is 32372416601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32372416601 = 7 ⋅4624630943.

It is a cyclic number.

It is not a de Polignac number, because 10661427323 - 2² = 10661427319 is a prime.

It is a super-2 number, since 2×10661427323² (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 (10661427373) 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, 11871965 + ... + 11872862.

It is an arithmetic number, because the mean of its divisors is an integer number (2671293150).

Almost surely, 2^10661427323 is an apocalyptic number.

10661427323 is a deficient number, since it is larger than the sum of its proper divisors (23745277).

10661427323 is an equidigital number, since it uses as much as digits as its factorization.

10661427323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23745276.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 10661427323 in words is "ten billion, six hundred sixty-one million, four hundred twenty-seven thousand, three hundred twenty-three".