321131412321 has 4 divisors (see below), whose sum is σ = 428175216432. Its totient is φ = 214087608212.

The previous prime is 321131412317. The next prime is 321131412331. The reversal of 321131412321 is 123214131123.

321131412321 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321131412321 - 2² = 321131412317 is a prime.

It is a super-2 number, since 2×321131412321² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321131412291 and 321131412300.

It is not an unprimeable number, because it can be changed into a prime (321131412331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53521902051 + ... + 53521902056.

It is an arithmetic number, because the mean of its divisors is an integer number (107043804108).

Almost surely, 2^321131412321 is an apocalyptic number.

It is an amenable number.

321131412321 is a deficient number, since it is larger than the sum of its proper divisors (107043804111).

321131412321 is a wasteful number, since it uses less digits than its factorization.

321131412321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107043804110.

The product of its digits is 864, while the sum is 24.

Adding to 321131412321 its reverse (123214131123), we get a palindrome (444345543444).

The spelling of 321131412321 in words is "three hundred twenty-one billion, one hundred thirty-one million, four hundred twelve thousand, three hundred twenty-one".