1131304343331 has 16 divisors (see below), whose sum is σ = 1555938500000. Its totient is φ = 730614567168.

The previous prime is 1131304343263. The next prime is 1131304343339. The reversal of 1131304343331 is 1333434031311.

It is not a de Polignac number, because 1131304343331 - 2¹⁰ = 1131304342307 is a prime.

It is a super-2 number, since 2×1131304343331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131304343339) 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 in 15 ways as a sum of consecutive naturals, for example, 22227706 + ... + 22278543.

It is an arithmetic number, because the mean of its divisors is an integer number (97246156250).

Almost surely, 2^{1131304343331} is an apocalyptic number.

1131304343331 is a deficient number, since it is larger than the sum of its proper divisors (424634156669).

1131304343331 is a wasteful number, since it uses less digits than its factorization.

1131304343331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44506518.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 1131304343331 its reverse (1333434031311), we get a palindrome (2464738374642).

The spelling of 1131304343331 in words is "one trillion, one hundred thirty-one billion, three hundred four million, three hundred forty-three thousand, three hundred thirty-one".