1121352139 has 2 divisors, whose sum is σ = 1121352140. Its totient is φ = 1121352138.

The previous prime is 1121352109. The next prime is 1121352157. The reversal of 1121352139 is 9312531211.

It is a strong prime.

It is an emirp because it is prime and its reverse (9312531211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121352139 - 2¹⁷ = 1121221067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121352109) 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, 560676069 + 560676070.

It is an arithmetic number, because the mean of its divisors is an integer number (560676070).

Almost surely, 2^1121352139 is an apocalyptic number.

1121352139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121352139 is an equidigital number, since it uses as much as digits as its factorization.

1121352139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 28.

The square root of 1121352139 is about 33486.5964081153. The cubic root of 1121352139 is about 1038.9165674107.

The spelling of 1121352139 in words is "one billion, one hundred twenty-one million, three hundred fifty-two thousand, one hundred thirty-nine".