10661441123 has 4 divisors (see below), whose sum is σ = 10767000048. Its totient is φ = 10555882200.

The previous prime is 10661441117. The next prime is 10661441143. The reversal of 10661441123 is 32114416601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32114416601 = 113 ⋅284198377.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10661441123 is a prime.

It is a super-2 number, since 2×10661441123² (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 (10661441143) 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, 52779311 + ... + 52779512.

It is an arithmetic number, because the mean of its divisors is an integer number (2691750012).

Almost surely, 2^10661441123 is an apocalyptic number.

10661441123 is a deficient number, since it is larger than the sum of its proper divisors (105558925).

10661441123 is a wasteful number, since it uses less digits than its factorization.

10661441123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105558924.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 10661441123 its reverse (32114416601), we get a palindrome (42775857724).

The spelling of 10661441123 in words is "ten billion, six hundred sixty-one million, four hundred forty-one thousand, one hundred twenty-three".