23111233320231 has 40 divisors (see below), whose sum is σ = 39899543254560. Its totient is φ = 13058032280832.

The previous prime is 23111233320223. The next prime is 23111233320281. The reversal of 23111233320231 is 13202333211132.

23111233320231 is a `hidden beast` number, since 2 + 311 + 1 + 2 + 3 + 3 + 320 + 23 + 1 = 666.

It is not a de Polignac number, because 23111233320231 - 2³ = 23111233320223 is a prime.

It is a super-3 number, since 3×23111233320231³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 23111233320195 and 23111233320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111233320281) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 228941406 + ... + 229042331.

It is an arithmetic number, because the mean of its divisors is an integer number (997488581364).

Almost surely, 2^{23111233320231} is an apocalyptic number.

23111233320231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23111233320231 is a deficient number, since it is larger than the sum of its proper divisors (16788309934329).

23111233320231 is an equidigital number, since it uses as much as digits as its factorization.

23111233320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457983845 (or 457983836 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 23111233320231 its reverse (13202333211132), we get a palindrome (36313566531363).

The spelling of 23111233320231 in words is "twenty-three trillion, one hundred eleven billion, two hundred thirty-three million, three hundred twenty thousand, two hundred thirty-one".