11539271239 has 4 divisors (see below), whose sum is σ = 11553025680. Its totient is φ = 11525516800.

The previous prime is 11539271231. The next prime is 11539271269. The reversal of 11539271239 is 93217293511.

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

It is a cyclic number.

It is not a de Polignac number, because 11539271239 - 2³ = 11539271231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11539271195 and 11539271204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11539271231) 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, 6875962 + ... + 6877639.

It is an arithmetic number, because the mean of its divisors is an integer number (2888256420).

Almost surely, 2^11539271239 is an apocalyptic number.

11539271239 is a deficient number, since it is larger than the sum of its proper divisors (13754441).

11539271239 is an equidigital number, since it uses as much as digits as its factorization.

11539271239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13754440.

The product of its digits is 102060, while the sum is 43.

The spelling of 11539271239 in words is "eleven billion, five hundred thirty-nine million, two hundred seventy-one thousand, two hundred thirty-nine".