3121301230331 has 2 divisors, whose sum is σ = 3121301230332. Its totient is φ = 3121301230330.

The previous prime is 3121301230241. The next prime is 3121301230379. The reversal of 3121301230331 is 1330321031213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121301230331 is a prime.

It is a super-2 number, since 2×3121301230331² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3121301230297 and 3121301230306.

It is not a weakly prime, because it can be changed into another prime (3121301230391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560650615165 + 1560650615166.

It is an arithmetic number, because the mean of its divisors is an integer number (1560650615166).

Almost surely, 2^{3121301230331} is an apocalyptic number.

3121301230331 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121301230331 is an equidigital number, since it uses as much as digits as its factorization.

3121301230331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 3121301230331 its reverse (1330321031213), we get a palindrome (4451622261544).

The spelling of 3121301230331 in words is "three trillion, one hundred twenty-one billion, three hundred one million, two hundred thirty thousand, three hundred thirty-one".