2111103310331 has 2 divisors, whose sum is σ = 2111103310332. Its totient is φ = 2111103310330.

The previous prime is 2111103310319. The next prime is 2111103310367. The reversal of 2111103310331 is 1330133011112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111103310331 - 2¹⁰ = 2111103309307 is a prime.

It is a super-2 number, since 2×2111103310331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2111103310931) 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, 1055551655165 + 1055551655166.

It is an arithmetic number, because the mean of its divisors is an integer number (1055551655166).

Almost surely, 2^{2111103310331} is an apocalyptic number.

2111103310331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111103310331 is an equidigital number, since it uses as much as digits as its factorization.

2111103310331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 2111103310331 its reverse (1330133011112), we get a palindrome (3441236321443).

The spelling of 2111103310331 in words is "two trillion, one hundred eleven billion, one hundred three million, three hundred ten thousand, three hundred thirty-one".