321023131441 has 4 divisors (see below), whose sum is σ = 322796740084. Its totient is φ = 319249522800.

The previous prime is 321023131427. The next prime is 321023131447. The reversal of 321023131441 is 144131320123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23421241600 + 297601889841 = 153040^2 + 545529^2 .

It is a cyclic number.

It is not a de Polignac number, because 321023131441 - 2¹¹ = 321023129393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321023131447) 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, 886804050 + ... + 886804411.

It is an arithmetic number, because the mean of its divisors is an integer number (80699185021).

Almost surely, 2^321023131441 is an apocalyptic number.

It is an amenable number.

321023131441 is a deficient number, since it is larger than the sum of its proper divisors (1773608643).

321023131441 is a wasteful number, since it uses less digits than its factorization.

321023131441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773608642.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 321023131441 its reverse (144131320123), we get a palindrome (465154451564).

The spelling of 321023131441 in words is "three hundred twenty-one billion, twenty-three million, one hundred thirty-one thousand, four hundred forty-one".