11531423327 has 8 divisors (see below), whose sum is σ = 11742913680. Its totient is φ = 11320467840.

The previous prime is 11531423317. The next prime is 11531423329. The reversal of 11531423327 is 72332413511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11531423327 - 2⁴ = 11531423311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11531423293 and 11531423302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531423329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90074 + ... + 176567.

It is an arithmetic number, because the mean of its divisors is an integer number (1467864210).

Almost surely, 2^11531423327 is an apocalyptic number.

11531423327 is a deficient number, since it is larger than the sum of its proper divisors (211490353).

11531423327 is an equidigital number, since it uses as much as digits as its factorization.

11531423327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267433.

The product of its digits is 15120, while the sum is 32.

Adding to 11531423327 its reverse (72332413511), we get a palindrome (83863836838).

The spelling of 11531423327 in words is "eleven billion, five hundred thirty-one million, four hundred twenty-three thousand, three hundred twenty-seven".