320311230421 has 32 divisors (see below), whose sum is σ = 402606892800. Its totient is φ = 248103820800.

The previous prime is 320311230419. The next prime is 320311230431. The reversal of 320311230421 is 124032113023.

It is a cyclic number.

It is not a de Polignac number, because 320311230421 - 2¹ = 320311230419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320311230392 and 320311230401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320311230431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 622210 + ... + 1013788.

It is an arithmetic number, because the mean of its divisors is an integer number (12581465400).

Almost surely, 2^320311230421 is an apocalyptic number.

It is an amenable number.

320311230421 is a deficient number, since it is larger than the sum of its proper divisors (82295662379).

320311230421 is a wasteful number, since it uses less digits than its factorization.

320311230421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391789.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 320311230421 its reverse (124032113023), we get a palindrome (444343343444).

The spelling of 320311230421 in words is "three hundred twenty billion, three hundred eleven million, two hundred thirty thousand, four hundred twenty-one".