23231012211 has 12 divisors (see below), whose sum is σ = 36606443640. Its totient is φ = 14079401280.

The previous prime is 23231012197. The next prime is 23231012243. The reversal of 23231012211 is 11221013232.

23231012211 is a `hidden beast` number, since 232 + 310 + 122 + 1 + 1 = 666.

It is not a de Polignac number, because 23231012211 - 2¹¹ = 23231010163 is a prime.

It is a super-2 number, since 2×23231012211² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23231012291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117328246 + ... + 117328443.

It is an arithmetic number, because the mean of its divisors is an integer number (3050536970).

Almost surely, 2^23231012211 is an apocalyptic number.

23231012211 is a deficient number, since it is larger than the sum of its proper divisors (13375431429).

23231012211 is a wasteful number, since it uses less digits than its factorization.

23231012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234656706 (or 234656703 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23231012211 its reverse (11221013232), we get a palindrome (34452025443).

The spelling of 23231012211 in words is "twenty-three billion, two hundred thirty-one million, twelve thousand, two hundred eleven".