23133011231 has 12 divisors (see below), whose sum is σ = 26532727536. Its totient is φ = 20115659520.

The previous prime is 23133011227. The next prime is 23133011243. The reversal of 23133011231 is 13211033132.

It is not a de Polignac number, because 23133011231 - 2² = 23133011227 is a prime.

It is a super-2 number, since 2×23133011231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133011201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4153346 + ... + 4158911.

It is an arithmetic number, because the mean of its divisors is an integer number (2211060628).

Almost surely, 2^23133011231 is an apocalyptic number.

23133011231 is a deficient number, since it is larger than the sum of its proper divisors (3399716305).

23133011231 is a wasteful number, since it uses less digits than its factorization.

23133011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8312302 (or 8312291 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 23133011231 its reverse (13211033132), we get a palindrome (36344044363).

The spelling of 23133011231 in words is "twenty-three billion, one hundred thirty-three million, eleven thousand, two hundred thirty-one".