1131200219 has 2 divisors, whose sum is σ = 1131200220. Its totient is φ = 1131200218.

The previous prime is 1131200197. The next prime is 1131200233. The reversal of 1131200219 is 9120021311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131200219 - 2²⁴ = 1114423003 is a prime.

It is a super-2 number, since 2×1131200219² = 2559227870931295922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1131200219.

It is not a weakly prime, because it can be changed into another prime (1131200249) 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, 565600109 + 565600110.

It is an arithmetic number, because the mean of its divisors is an integer number (565600110).

Almost surely, 2^1131200219 is an apocalyptic number.

1131200219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131200219 is an equidigital number, since it uses as much as digits as its factorization.

1131200219 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1131200219 is about 33633.3200710248. The cubic root of 1131200219 is about 1041.9490751500.

The spelling of 1131200219 in words is "one billion, one hundred thirty-one million, two hundred thousand, two hundred nineteen".