11440523141 has 4 divisors (see below), whose sum is σ = 11443266252. Its totient is φ = 11437780032.

The previous prime is 11440523117. The next prime is 11440523147. The reversal of 11440523141 is 14132504411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14132504411 = 15061 ⋅938351.

It can be written as a sum of positive squares in 2 ways, for example, as 9294888100 + 2145635041 = 96410^2 + 46321^2 .

It is a cyclic number.

It is not a de Polignac number, because 11440523141 - 2²⁶ = 11373414277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11440523141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11440523147) 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, 1365290 + ... + 1373643.

It is an arithmetic number, because the mean of its divisors is an integer number (2860816563).

Almost surely, 2^11440523141 is an apocalyptic number.

It is an amenable number.

11440523141 is a deficient number, since it is larger than the sum of its proper divisors (2743111).

11440523141 is an equidigital number, since it uses as much as digits as its factorization.

11440523141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743110.

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 11440523141 in words is "eleven billion, four hundred forty million, five hundred twenty-three thousand, one hundred forty-one".