321131021110331 has 4 divisors (see below), whose sum is σ = 321131104558200. Its totient is φ = 321130937662464.

The previous prime is 321131021110307. The next prime is 321131021110343. The reversal of 321131021110331 is 133011120131123.

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

It is a cyclic number.

It is not a de Polignac number, because 321131021110331 - 2⁴⁶ = 250762276932667 is a prime.

It is a super-2 number, since 2×321131021110331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321131021110297 and 321131021110306.

It is not an unprimeable number, because it can be changed into a prime (321131021112331) 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, 35657501 + ... + 43746078.

It is an arithmetic number, because the mean of its divisors is an integer number (80282776139550).

Almost surely, 2^{321131021110331} is an apocalyptic number.

321131021110331 is a deficient number, since it is larger than the sum of its proper divisors (83447869).

321131021110331 is an equidigital number, since it uses as much as digits as its factorization.

321131021110331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83447868.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 321131021110331 its reverse (133011120131123), we get a palindrome (454142141241454).

The spelling of 321131021110331 in words is "three hundred twenty-one trillion, one hundred thirty-one billion, twenty-one million, one hundred ten thousand, three hundred thirty-one".