1121209575923 has 2 divisors, whose sum is σ = 1121209575924. Its totient is φ = 1121209575922.

The previous prime is 1121209575797. The next prime is 1121209575931. The reversal of 1121209575923 is 3295759021211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121209575923 - 2¹⁰ = 1121209574899 is a prime.

It is a super-2 number, since 2×1121209575923² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121209575953) 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, 560604787961 + 560604787962.

It is an arithmetic number, because the mean of its divisors is an integer number (560604787962).

Almost surely, 2^{1121209575923} is an apocalyptic number.

1121209575923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121209575923 is an equidigital number, since it uses as much as digits as its factorization.

1121209575923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 340200, while the sum is 47.

The spelling of 1121209575923 in words is "one trillion, one hundred twenty-one billion, two hundred nine million, five hundred seventy-five thousand, nine hundred twenty-three".