1131241603 has 2 divisors, whose sum is σ = 1131241604. Its totient is φ = 1131241602.

The previous prime is 1131241597. The next prime is 1131241763. The reversal of 1131241603 is 3061421311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131241603 - 2⁹ = 1131241091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131241103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565620801 + 565620802.

It is an arithmetic number, because the mean of its divisors is an integer number (565620802).

Almost surely, 2^1131241603 is an apocalyptic number.

1131241603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131241603 is an equidigital number, since it uses as much as digits as its factorization.

1131241603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1131241603 is about 33633.9352886337. The cubic root of 1131241603 is about 1041.9617812692.

Adding to 1131241603 its reverse (3061421311), we get a palindrome (4192662914).

The spelling of 1131241603 in words is "one billion, one hundred thirty-one million, two hundred forty-one thousand, six hundred three".