2112031331 has 2 divisors, whose sum is σ = 2112031332. Its totient is φ = 2112031330.

The previous prime is 2112031309. The next prime is 2112031351. The reversal of 2112031331 is 1331302112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112031331 is a prime.

It is a super-2 number, since 2×2112031331² = 8921352686251263122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2112031351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056015665 + 1056015666.

It is an arithmetic number, because the mean of its divisors is an integer number (1056015666).

Almost surely, 2^2112031331 is an apocalyptic number.

2112031331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112031331 is an equidigital number, since it uses as much as digits as its factorization.

2112031331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2112031331 is about 45956.8420477300. The cubic root of 2112031331 is about 1283.0200763646.

Adding to 2112031331 its reverse (1331302112), we get a palindrome (3443333443).

The spelling of 2112031331 in words is "two billion, one hundred twelve million, thirty-one thousand, three hundred thirty-one".