23131305244216 has 192 divisors, whose sum is σ = 48377528640000. Its totient is φ = 10358824439808.

The previous prime is 23131305244199. The next prime is 23131305244219. The reversal of 23131305244216 is 61244250313132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131305244219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8205498855 + ... + 8205501673.

It is an arithmetic number, because the mean of its divisors is an integer number (251966295000).

Almost surely, 2^{23131305244216} is an apocalyptic number.

23131305244216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23131305244216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24188764320000).

23131305244216 is an abundant number, since it is smaller than the sum of its proper divisors (25246223395784).

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

23131305244216 is a wasteful number, since it uses less digits than its factorization.

23131305244216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966 (or 3949 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 23131305244216 its reverse (61244250313132), we get a palindrome (84375555557348).

The spelling of 23131305244216 in words is "twenty-three trillion, one hundred thirty-one billion, three hundred five million, two hundred forty-four thousand, two hundred sixteen".