321420300320442 has 32 divisors (see below), whose sum is σ = 647916164273664. Its totient is φ = 106294598046000.

The previous prime is 321420300320363. The next prime is 321420300320443. The reversal of 321420300320442 is 244023003024123.

It is a super-2 number, since 2×321420300320442² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321420300320443) 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, 50125684 + ... + 56173167.

It is an arithmetic number, because the mean of its divisors is an integer number (20247380133552).

Almost surely, 2^{321420300320442} is an apocalyptic number.

321420300320442 is an abundant number, since it is smaller than the sum of its proper divisors (326495863953222).

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

321420300320442 is a wasteful number, since it uses less digits than its factorization.

321420300320442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106302834.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 321420300320442 its reverse (244023003024123), we get a palindrome (565443303344565).

The spelling of 321420300320442 in words is "three hundred twenty-one trillion, four hundred twenty billion, three hundred million, three hundred twenty thousand, four hundred forty-two".