11631671443 has 4 divisors (see below), whose sum is σ = 13293338800. Its totient is φ = 9970004088.

The previous prime is 11631671431. The next prime is 11631671459. The reversal of 11631671443 is 34417613611.

11631671443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34417613611 = 269 ⋅127946519.

It is a cyclic number.

It is not a de Polignac number, because 11631671443 - 2³³ = 3041736851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11631171443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830833668 + ... + 830833681.

It is an arithmetic number, because the mean of its divisors is an integer number (3323334700).

Almost surely, 2^11631671443 is an apocalyptic number.

11631671443 is a deficient number, since it is larger than the sum of its proper divisors (1661667357).

11631671443 is an equidigital number, since it uses as much as digits as its factorization.

11631671443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661667356.

The product of its digits is 36288, while the sum is 37.

The spelling of 11631671443 in words is "eleven billion, six hundred thirty-one million, six hundred seventy-one thousand, four hundred forty-three".