1131144319 has 2 divisors, whose sum is σ = 1131144320. Its totient is φ = 1131144318.

The previous prime is 1131144307. The next prime is 1131144359. The reversal of 1131144319 is 9134411311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131144319 - 2²¹ = 1129047167 is a prime.

It is a super-2 number, since 2×1131144319² = 2558974940811947522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131144359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565572159 + 565572160.

It is an arithmetic number, because the mean of its divisors is an integer number (565572160).

Almost surely, 2^1131144319 is an apocalyptic number.

1131144319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131144319 is an equidigital number, since it uses as much as digits as its factorization.

1131144319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 28.

The square root of 1131144319 is about 33632.4890396176. The cubic root of 1131144319 is about 1041.9319116948.

The spelling of 1131144319 in words is "one billion, one hundred thirty-one million, one hundred forty-four thousand, three hundred nineteen".