23213344212 has 72 divisors (see below), whose sum is σ = 62158974696. Its totient is φ = 7279202304.

The previous prime is 23213344211. The next prime is 23213344213. The reversal of 23213344212 is 21244331232.

23213344212 is a `hidden beast` number, since 2 + 3 + 213 + 3 + 442 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (23213344211) and next prime (23213344213).

It can be written as a sum of positive squares in 4 ways, for example, as 549246096 + 22664098116 = 23436^2 + 150546^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213344211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1508268 + ... + 1523580.

It is an arithmetic number, because the mean of its divisors is an integer number (863319093).

Almost surely, 2^23213344212 is an apocalyptic number.

It is an amenable number.

23213344212 is an abundant number, since it is smaller than the sum of its proper divisors (38945630484).

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

23213344212 is a wasteful number, since it uses less digits than its factorization.

23213344212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17817 (or 17812 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 23213344212 its reverse (21244331232), we get a palindrome (44457675444).

The spelling of 23213344212 in words is "twenty-three billion, two hundred thirteen million, three hundred forty-four thousand, two hundred twelve".