321421024440144 has 40 divisors (see below), whose sum is σ = 922597384968320. Its totient is φ = 107140341479904.

The previous prime is 321421024440073. The next prime is 321421024440151. The reversal of 321421024440144 is 441044420124123.

321421024440144 is a `hidden beast` number, since 3 + 2 + 1 + 4 + 2 + 1 + 0 + 244 + 401 + 4 + 4 = 666.

It is a super-2 number, since 2×321421024440144² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 321421024440099 and 321421024440108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372015074152 + ... + 372015075015.

It is an arithmetic number, because the mean of its divisors is an integer number (23064934624208).

Almost surely, 2^{321421024440144} is an apocalyptic number.

It is an amenable number.

321421024440144 is an abundant number, since it is smaller than the sum of its proper divisors (601176360528176).

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

321421024440144 is a wasteful number, since it uses less digits than its factorization.

321421024440144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744030149184 (or 744030149172 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 36.

Adding to 321421024440144 its reverse (441044420124123), we get a palindrome (762465444564267).

The spelling of 321421024440144 in words is "three hundred twenty-one trillion, four hundred twenty-one billion, twenty-four million, four hundred forty thousand, one hundred forty-four".