321441123203240 has 16 divisors (see below), whose sum is σ = 723242527207380. Its totient is φ = 128576449281280.

The previous prime is 321441123203231. The next prime is 321441123203269. The reversal of 321441123203240 is 42302321144123.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 297658900806436 + 23782222396804 = 17252794^2 + 4876702^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321441123203197 and 321441123203206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4018014040001 + ... + 4018014040080.

Almost surely, 2^{321441123203240} is an apocalyptic number.

It is an amenable number.

321441123203240 is an abundant number, since it is smaller than the sum of its proper divisors (401801404004140).

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

321441123203240 is a wasteful number, since it uses less digits than its factorization.

321441123203240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8036028080092 (or 8036028080088 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 321441123203240 its reverse (42302321144123), we get a palindrome (363743444347363).

The spelling of 321441123203240 in words is "three hundred twenty-one trillion, four hundred forty-one billion, one hundred twenty-three million, two hundred three thousand, two hundred forty".