321313030131 has 4 divisors (see below), whose sum is σ = 428417373512. Its totient is φ = 214208686752.

The previous prime is 321313030123. The next prime is 321313030183. The reversal of 321313030131 is 131030313123.

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

It is not a de Polignac number, because 321313030131 - 2³ = 321313030123 is a prime.

It is a super-2 number, since 2×321313030131² (a number of 24 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 = 321313030098 and 321313030107.

It is not an unprimeable number, because it can be changed into a prime (321313030121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53552171686 + ... + 53552171691.

It is an arithmetic number, because the mean of its divisors is an integer number (107104343378).

Almost surely, 2^321313030131 is an apocalyptic number.

321313030131 is a deficient number, since it is larger than the sum of its proper divisors (107104343381).

321313030131 is a wasteful number, since it uses less digits than its factorization.

321313030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107104343380.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 321313030131 its reverse (131030313123), we get a palindrome (452343343254).

The spelling of 321313030131 in words is "three hundred twenty-one billion, three hundred thirteen million, thirty thousand, one hundred thirty-one".