3213130440520 has 256 divisors, whose sum is σ = 9734655168000. Its totient is φ = 921804226560.

The previous prime is 3213130440511. The next prime is 3213130440563. The reversal of 3213130440520 is 250440313123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13858992 + ... + 14088928.

It is an arithmetic number, because the mean of its divisors is an integer number (38025996750).

Almost surely, 2^{3213130440520} 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 3213130440520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4867327584000).

3213130440520 is an abundant number, since it is smaller than the sum of its proper divisors (6521524727480).

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

3213130440520 is a wasteful number, since it uses less digits than its factorization.

3213130440520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230328 (or 230324 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 3213130440520 its reverse (250440313123), we get a palindrome (3463570753643).

The spelling of 3213130440520 in words is "three trillion, two hundred thirteen billion, one hundred thirty million, four hundred forty thousand, five hundred twenty".