3213121330320 has 160 divisors (see below), whose sum is σ = 10921352238720. Its totient is φ = 774984376320.

The previous prime is 3213121330319. The next prime is 3213121330399. The reversal of 3213121330320 is 230331213123.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2568985 + ... + 3609144.

It is an arithmetic number, because the mean of its divisors is an integer number (68258451492).

Almost surely, 2^{3213121330320} is an apocalyptic number.

3213121330320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3213121330320 is an abundant number, since it is smaller than the sum of its proper divisors (7708230908400).

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

3213121330320 is a wasteful number, since it uses less digits than its factorization.

3213121330320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6178353 (or 6178347 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 3213121330320 its reverse (230331213123), we get a palindrome (3443452543443).

The spelling of 3213121330320 in words is "three trillion, two hundred thirteen billion, one hundred twenty-one million, three hundred thirty thousand, three hundred twenty".