1121807119 has 2 divisors, whose sum is σ = 1121807120. Its totient is φ = 1121807118.

The previous prime is 1121807117. The next prime is 1121807201. The reversal of 1121807119 is 9117081211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121807119 - 2¹ = 1121807117 is a prime.

It is a super-2 number, since 2×1121807119² = 2516902424478160322, which contains 22 as substring.

Together with 1121807117, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121807117) 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 as a sum of consecutive naturals, namely, 560903559 + 560903560.

It is an arithmetic number, because the mean of its divisors is an integer number (560903560).

Almost surely, 2^1121807119 is an apocalyptic number.

1121807119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121807119 is an equidigital number, since it uses as much as digits as its factorization.

1121807119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 31.

The square root of 1121807119 is about 33493.3891835389. The cubic root of 1121807119 is about 1039.0570592116.

The spelling of 1121807119 in words is "one billion, one hundred twenty-one million, eight hundred seven thousand, one hundred nineteen".