331131112320311 has 2 divisors, whose sum is σ = 331131112320312. Its totient is φ = 331131112320310.

The previous prime is 331131112320287. The next prime is 331131112320343. The reversal of 331131112320311 is 113023211131133.

It is a weak prime.

It is an emirp because it is prime and its reverse (113023211131133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331131112320311 - 2¹⁸ = 331131112058167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331131112320391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165565556160155 + 165565556160156.

It is an arithmetic number, because the mean of its divisors is an integer number (165565556160156).

Almost surely, 2^{331131112320311} is an apocalyptic number.

331131112320311 is a deficient number, since it is larger than the sum of its proper divisors (1).

331131112320311 is an equidigital number, since it uses as much as digits as its factorization.

331131112320311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 331131112320311 its reverse (113023211131133), we get a palindrome (444154323451444).

The spelling of 331131112320311 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, one hundred twelve million, three hundred twenty thousand, three hundred eleven".