11142044231 has 4 divisors (see below), whose sum is σ = 11142337752. Its totient is φ = 11141750712.

The previous prime is 11142044227. The next prime is 11142044233. The reversal of 11142044231 is 13244024111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13244024111 = 139 ⋅95280749.

It is a cyclic number.

It is not a de Polignac number, because 11142044231 - 2² = 11142044227 is a prime.

It is a super-2 number, since 2×11142044231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11142044197 and 11142044206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142044233) 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, 79565 + ... + 169158.

It is an arithmetic number, because the mean of its divisors is an integer number (2785584438).

Almost surely, 2^11142044231 is an apocalyptic number.

11142044231 is a deficient number, since it is larger than the sum of its proper divisors (293521).

11142044231 is an equidigital number, since it uses as much as digits as its factorization.

11142044231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293520.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 11142044231 its reverse (13244024111), we get a palindrome (24386068342).

The spelling of 11142044231 in words is "eleven billion, one hundred forty-two million, forty-four thousand, two hundred thirty-one".