11643225043 has 4 divisors (see below), whose sum is σ = 11647323288. Its totient is φ = 11639126800.

The previous prime is 11643225037. The next prime is 11643225053. The reversal of 11643225043 is 34052234611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11643225043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11643224996 and 11643225014.

It is not an unprimeable number, because it can be changed into a prime (11643225053) 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, 2044858 + ... + 2050543.

It is an arithmetic number, because the mean of its divisors is an integer number (2911830822).

Almost surely, 2^11643225043 is an apocalyptic number.

11643225043 is a deficient number, since it is larger than the sum of its proper divisors (4098245).

11643225043 is an equidigital number, since it uses as much as digits as its factorization.

11643225043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4098244.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 11643225043 its reverse (34052234611), we get a palindrome (45695459654).

The spelling of 11643225043 in words is "eleven billion, six hundred forty-three million, two hundred twenty-five thousand, forty-three".