23152201211231 has 4 divisors (see below), whose sum is σ = 23218539897000. Its totient is φ = 23085862525464.

The previous prime is 23152201211203. The next prime is 23152201211233. The reversal of 23152201211231 is 13211210225132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23152201211231 - 2¹⁰ = 23152201210207 is a prime.

It is a super-2 number, since 2×23152201211231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23152201211231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23152201211233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33169342361 + ... + 33169343058.

It is an arithmetic number, because the mean of its divisors is an integer number (5804634974250).

Almost surely, 2^{23152201211231} is an apocalyptic number.

23152201211231 is a deficient number, since it is larger than the sum of its proper divisors (66338685769).

23152201211231 is an equidigital number, since it uses as much as digits as its factorization.

23152201211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66338685768.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 23152201211231 its reverse (13211210225132), we get a palindrome (36363411436363).

The spelling of 23152201211231 in words is "twenty-three trillion, one hundred fifty-two billion, two hundred one million, two hundred eleven thousand, two hundred thirty-one".