1201441523 has 2 divisors, whose sum is σ = 1201441524. Its totient is φ = 1201441522.

The previous prime is 1201441489. The next prime is 1201441531. The reversal of 1201441523 is 3251441021.

It is a strong prime.

It is an emirp because it is prime and its reverse (3251441021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201441523 - 2¹⁸ = 1201179379 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1201441583) 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, 600720761 + 600720762.

It is an arithmetic number, because the mean of its divisors is an integer number (600720762).

Almost surely, 2^1201441523 is an apocalyptic number.

1201441523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201441523 is an equidigital number, since it uses as much as digits as its factorization.

1201441523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1201441523 is about 34661.8164988507. The cubic root of 1201441523 is about 1063.0839119023.

Adding to 1201441523 its reverse (3251441021), we get a palindrome (4452882544).

The spelling of 1201441523 in words is "one billion, two hundred one million, four hundred forty-one thousand, five hundred twenty-three".