321213130000442 has 32 divisors (see below), whose sum is σ = 526621173719040. Its totient is φ = 146282379344640.

The previous prime is 321213130000439. The next prime is 321213130000471. The reversal of 321213130000442 is 244000031312123.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308205863 + ... + 309246309.

It is an arithmetic number, because the mean of its divisors is an integer number (16456911678720).

Almost surely, 2^{321213130000442} is an apocalyptic number.

321213130000442 is a deficient number, since it is larger than the sum of its proper divisors (205408043718598).

321213130000442 is a wasteful number, since it uses less digits than its factorization.

321213130000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333406.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 321213130000442 its reverse (244000031312123), we get a palindrome (565213161312565).

The spelling of 321213130000442 in words is "three hundred twenty-one trillion, two hundred thirteen billion, one hundred thirty million, four hundred forty-two", and thus it is an aban number.