321420311230144 has 112 divisors (see below), whose sum is σ = 755329951872000. Its totient is φ = 132779465634816.

The previous prime is 321420311230129. The next prime is 321420311230153. The reversal of 321420311230144 is 441032113024123.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×321420311230144² (a number of 30 digits) contains 22 as substring.

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, 12868764 + ... + 28433179.

Almost surely, 2^{321420311230144} is an apocalyptic number.

It is an amenable number.

321420311230144 is an abundant number, since it is smaller than the sum of its proper divisors (433909640641856).

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

321420311230144 is a wasteful number, since it uses less digits than its factorization.

321420311230144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41302590 (or 41302580 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 321420311230144 its reverse (441032113024123), we get a palindrome (762452424254267).

The spelling of 321420311230144 in words is "three hundred twenty-one trillion, four hundred twenty billion, three hundred eleven million, two hundred thirty thousand, one hundred forty-four".