1131211211303 has 16 divisors (see below), whose sum is σ = 1224923679360. Its totient is φ = 1040784576000.

The previous prime is 1131211211293. The next prime is 1131211211387. The reversal of 1131211211303 is 3031121121311.

It is a cyclic number.

It is not a de Polignac number, because 1131211211303 - 2⁶ = 1131211211239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131211211803) 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 in 15 ways as a sum of consecutive naturals, for example, 4034168 + ... + 4305453.

It is an arithmetic number, because the mean of its divisors is an integer number (76557729960).

Almost surely, 2^{1131211211303} is an apocalyptic number.

1131211211303 is a deficient number, since it is larger than the sum of its proper divisors (93712468057).

1131211211303 is a wasteful number, since it uses less digits than its factorization.

1131211211303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8339818.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1131211211303 its reverse (3031121121311), we get a palindrome (4162332332614).

The spelling of 1131211211303 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, two hundred eleven thousand, three hundred three".