2131201441 has 2 divisors, whose sum is σ = 2131201442. Its totient is φ = 2131201440.

The previous prime is 2131201439. The next prime is 2131201489. The reversal of 2131201441 is 1441021312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1909340416 + 221861025 = 43696^2 + 14895^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131201441 - 2¹ = 2131201439 is a prime.

Together with 2131201439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2131204441) 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, 1065600720 + 1065600721.

It is an arithmetic number, because the mean of its divisors is an integer number (1065600721).

Almost surely, 2^2131201441 is an apocalyptic number.

It is an amenable number.

2131201441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131201441 is an equidigital number, since it uses as much as digits as its factorization.

2131201441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2131201441 is about 46164.9373550967. The cubic root of 2131201441 is about 1286.8902200073.

Adding to 2131201441 its reverse (1441021312), we get a palindrome (3572222753).

The spelling of 2131201441 in words is "two billion, one hundred thirty-one million, two hundred one thousand, four hundred forty-one".