1341112021 has 2 divisors, whose sum is σ = 1341112022. Its totient is φ = 1341112020.

The previous prime is 1341112013. The next prime is 1341112051. The reversal of 1341112021 is 1202111431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 818760996 + 522351025 = 28614^2 + 22855^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341112021 - 2³ = 1341112013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1341111986 and 1341112004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1341112051) 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, 670556010 + 670556011.

It is an arithmetic number, because the mean of its divisors is an integer number (670556011).

Almost surely, 2^1341112021 is an apocalyptic number.

It is an amenable number.

1341112021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341112021 is an equidigital number, since it uses as much as digits as its factorization.

1341112021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1341112021 is about 36621.1963349097. The cubic root of 1341112021 is about 1102.7786557807.

Adding to 1341112021 its reverse (1202111431), we get a palindrome (2543223452).

The spelling of 1341112021 in words is "one billion, three hundred forty-one million, one hundred twelve thousand, twenty-one".