3121332320311 has 2 divisors, whose sum is σ = 3121332320312. Its totient is φ = 3121332320310.

The previous prime is 3121332320233. The next prime is 3121332320317. The reversal of 3121332320311 is 1130232331213.

It is a strong prime.

It is an emirp because it is prime and its reverse (1130232331213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3121332320311 - 2⁴¹ = 922309064759 is a prime.

It is a super-2 number, since 2×3121332320311² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121332320317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560666160155 + 1560666160156.

It is an arithmetic number, because the mean of its divisors is an integer number (1560666160156).

Almost surely, 2^{3121332320311} is an apocalyptic number.

3121332320311 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121332320311 is an equidigital number, since it uses as much as digits as its factorization.

3121332320311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 3121332320311 its reverse (1130232331213), we get a palindrome (4251564651524).

The spelling of 3121332320311 in words is "three trillion, one hundred twenty-one billion, three hundred thirty-two million, three hundred twenty thousand, three hundred eleven".