23312223012 has 144 divisors (see below), whose sum is σ = 63018067392. Its totient is φ = 6680494080.

The previous prime is 23312223007. The next prime is 23312223017. The reversal of 23312223012 is 21032221332.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23312223007) and next prime (23312223017).

It is a super-2 number, since 2×23312223012² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23312223012.

It is not an unprimeable number, because it can be changed into a prime (23312223017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3340687 + ... + 3347657.

It is an arithmetic number, because the mean of its divisors is an integer number (437625468).

Almost surely, 2^23312223012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23312223012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31509033696).

23312223012 is an abundant number, since it is smaller than the sum of its proper divisors (39705844380).

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

23312223012 is a wasteful number, since it uses less digits than its factorization.

23312223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118 (or 7103 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23312223012 its reverse (21032221332), we get a palindrome (44344444344).

The spelling of 23312223012 in words is "twenty-three billion, three hundred twelve million, two hundred twenty-three thousand, twelve".