11895528231 has 12 divisors (see below), whose sum is σ = 17646820152. Its totient is φ = 7716018096.

The previous prime is 11895528223. The next prime is 11895528301. The reversal of 11895528231 is 13282559811.

11895528231 is a `hidden beast` number, since 1 + 1 + 8 + 95 + 528 + 2 + 31 = 666.

11895528231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11895528231 - 2³ = 11895528223 is a prime.

It is a super-2 number, since 2×11895528231² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11895568231) 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 11 ways as a sum of consecutive naturals, for example, 17860821 + ... + 17861486.

It is an arithmetic number, because the mean of its divisors is an integer number (1470568346).

Almost surely, 2^11895528231 is an apocalyptic number.

11895528231 is a deficient number, since it is larger than the sum of its proper divisors (5751291921).

11895528231 is a wasteful number, since it uses less digits than its factorization.

11895528231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35722350 (or 35722347 counting only the distinct ones).

The product of its digits is 172800, while the sum is 45.

The spelling of 11895528231 in words is "eleven billion, eight hundred ninety-five million, five hundred twenty-eight thousand, two hundred thirty-one".