23213003212 has 48 divisors (see below), whose sum is σ = 47566258432. Its totient is φ = 9704681280.

The previous prime is 23213003119. The next prime is 23213003213. The reversal of 23213003212 is 21230031232.

It is a self number, because there is not a number n which added to its sum of digits gives 23213003212.

It is not an unprimeable number, because it can be changed into a prime (23213003213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 964558 + ... + 988330.

Almost surely, 2^23213003212 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 23213003212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23783129216).

23213003212 is an abundant number, since it is smaller than the sum of its proper divisors (24353255220).

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

23213003212 is a wasteful number, since it uses less digits than its factorization.

23213003212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24638 (or 24636 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23213003212 its reverse (21230031232), we get a palindrome (44443034444).

The spelling of 23213003212 in words is "twenty-three billion, two hundred thirteen million, three thousand, two hundred twelve".