23211020231 has 8 divisors (see below), whose sum is σ = 26680216224. Its totient is φ = 19780158240.

The previous prime is 23211020221. The next prime is 23211020251. The reversal of 23211020231 is 13202011232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23211020231 is a prime.

It is a super-2 number, since 2×23211020231² (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 (23211020221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9582200 + ... + 9584621.

It is an arithmetic number, because the mean of its divisors is an integer number (3335027028).

Almost surely, 2^23211020231 is an apocalyptic number.

23211020231 is a deficient number, since it is larger than the sum of its proper divisors (3469195993).

23211020231 is a wasteful number, since it uses less digits than its factorization.

23211020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19167001.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23211020231 its reverse (13202011232), we get a palindrome (36413031463).

The spelling of 23211020231 in words is "twenty-three billion, two hundred eleven million, twenty thousand, two hundred thirty-one".