2111442331 has 2 divisors, whose sum is σ = 2111442332. Its totient is φ = 2111442330.

The previous prime is 2111442301. The next prime is 2111442367. The reversal of 2111442331 is 1332441112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111442331 - 2⁵ = 2111442299 is a prime.

It is a super-2 number, since 2×2111442331² = 8916377434277427122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2111442301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055721165 + 1055721166.

It is an arithmetic number, because the mean of its divisors is an integer number (1055721166).

Almost surely, 2^2111442331 is an apocalyptic number.

2111442331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111442331 is an equidigital number, since it uses as much as digits as its factorization.

2111442331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 2111442331 is about 45950.4334147133. The cubic root of 2111442331 is about 1282.9007963971.

Adding to 2111442331 its reverse (1332441112), we get a palindrome (3443883443).

The spelling of 2111442331 in words is "two billion, one hundred eleven million, four hundred forty-two thousand, three hundred thirty-one".