321441123430021 has 16 divisors (see below), whose sum is σ = 367477219630080. Its totient is φ = 275434014130560.

The previous prime is 321441123429989. The next prime is 321441123430043. The reversal of 321441123430021 is 120034321144123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 321441123430021 - 2⁵ = 321441123429989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321441123430621) 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, 2037957441 + ... + 2038115161.

It is an arithmetic number, because the mean of its divisors is an integer number (22967326226880).

Almost surely, 2^{321441123430021} is an apocalyptic number.

It is an amenable number.

321441123430021 is a deficient number, since it is larger than the sum of its proper divisors (46036096200059).

321441123430021 is a wasteful number, since it uses less digits than its factorization.

321441123430021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247764.

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

Adding to 321441123430021 its reverse (120034321144123), we get a palindrome (441475444574144).

The spelling of 321441123430021 in words is "three hundred twenty-one trillion, four hundred forty-one billion, one hundred twenty-three million, four hundred thirty thousand, twenty-one".