11231230311 has 32 divisors (see below), whose sum is σ = 19229529600. Its totient is φ = 6345725760.

The previous prime is 11231230273. The next prime is 11231230331. The reversal of 11231230311 is 11303213211.

11231230311 is a `hidden beast` number, since 1 + 12 + 312 + 30 + 311 = 666.

It is not a de Polignac number, because 11231230311 - 2⁶ = 11231230247 is a prime.

It is a super-2 number, since 2×11231230311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231230331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 317025 + ... + 350666.

It is an arithmetic number, because the mean of its divisors is an integer number (600922800).

Almost surely, 2^11231230311 is an apocalyptic number.

11231230311 is a deficient number, since it is larger than the sum of its proper divisors (7998299289).

11231230311 is an equidigital number, since it uses as much as digits as its factorization.

11231230311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667796 (or 667790 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11231230311 its reverse (11303213211), we get a palindrome (22534443522).

The spelling of 11231230311 in words is "eleven billion, two hundred thirty-one million, two hundred thirty thousand, three hundred eleven".