11443513229 has 4 divisors (see below), whose sum is σ = 12116661084. Its totient is φ = 10770365376.

The previous prime is 11443513223. The next prime is 11443513231. The reversal of 11443513229 is 92231534411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92231534411 = 8887 ⋅10378253.

It can be written as a sum of positive squares in 2 ways, for example, as 5311057129 + 6132456100 = 72877^2 + 78310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11443513229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11443513223) 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, 336573902 + ... + 336573935.

It is an arithmetic number, because the mean of its divisors is an integer number (3029165271).

Almost surely, 2^11443513229 is an apocalyptic number.

It is an amenable number.

11443513229 is a deficient number, since it is larger than the sum of its proper divisors (673147855).

11443513229 is an equidigital number, since it uses as much as digits as its factorization.

11443513229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673147854.

The product of its digits is 25920, while the sum is 35.

The spelling of 11443513229 in words is "eleven billion, four hundred forty-three million, five hundred thirteen thousand, two hundred twenty-nine".