1131343219 has 2 divisors, whose sum is σ = 1131343220. Its totient is φ = 1131343218.

The previous prime is 1131343177. The next prime is 1131343261. The reversal of 1131343219 is 9123431311.

It is a balanced prime because it is at equal distance from previous prime (1131343177) and next prime (1131343261).

It is a cyclic number.

It is not a de Polignac number, because 1131343219 - 2¹¹ = 1131341171 is a prime.

It is a super-2 number, since 2×1131343219² = 2559874958354563922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1131343289) 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, 565671609 + 565671610.

It is an arithmetic number, because the mean of its divisors is an integer number (565671610).

Almost surely, 2^1131343219 is an apocalyptic number.

1131343219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131343219 is an equidigital number, since it uses as much as digits as its factorization.

1131343219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 1131343219 is about 33635.4458718775. The cubic root of 1131343219 is about 1041.9929790900.

The spelling of 1131343219 in words is "one billion, one hundred thirty-one million, three hundred forty-three thousand, two hundred nineteen".