3213323040444 has 144 divisors (see below), whose sum is σ = 8323102819584. Its totient is φ = 964118650880.

The previous prime is 3213323040397. The next prime is 3213323040523. The reversal of 3213323040444 is 4440403233123.

It is a happy number.

It is a super-3 number, since 3×3213323040444³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62292607 + ... + 62344169.

It is an arithmetic number, because the mean of its divisors is an integer number (57799325136).

Almost surely, 2^{3213323040444} 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 3213323040444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4161551409792).

3213323040444 is an abundant number, since it is smaller than the sum of its proper divisors (5109779779140).

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

3213323040444 is a wasteful number, since it uses less digits than its factorization.

3213323040444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52016 (or 52003 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 3213323040444 its reverse (4440403233123), we get a palindrome (7653726273567).

The spelling of 3213323040444 in words is "three trillion, two hundred thirteen billion, three hundred twenty-three million, forty thousand, four hundred forty-four".