23211231221232 has 40 divisors (see below), whose sum is σ = 66624830358480. Its totient is φ = 7737077073600.

The previous prime is 23211231221153. The next prime is 23211231221251. The reversal of 23211231221232 is 23212213211232.

23211231221232 is a `hidden beast` number, since 2 + 3 + 2 + 112 + 312 + 2 + 1 + 232 = 666.

It is a super-2 number, since 2×23211231221232² (a number of 28 digits) contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 23211231221196 and 23211231221205.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26864850519 + ... + 26864851382.

It is an arithmetic number, because the mean of its divisors is an integer number (1665620758962).

Almost surely, 2^{23211231221232} is an apocalyptic number.

It is an amenable number.

23211231221232 is an abundant number, since it is smaller than the sum of its proper divisors (43413599137248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23211231221232 is a wasteful number, since it uses less digits than its factorization.

23211231221232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53729701918 (or 53729701906 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 23211231221232 its reverse (23212213211232), we get a palindrome (46423444432464).

The spelling of 23211231221232 in words is "twenty-three trillion, two hundred eleven billion, two hundred thirty-one million, two hundred twenty-one thousand, two hundred thirty-two".