1121201023 has 2 divisors, whose sum is σ = 1121201024. Its totient is φ = 1121201022.

The previous prime is 1121200991. The next prime is 1121201057. The reversal of 1121201023 is 3201021211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121201023 - 2⁵ = 1121200991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121200994 and 1121201012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121201923) 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, 560600511 + 560600512.

It is an arithmetic number, because the mean of its divisors is an integer number (560600512).

Almost surely, 2^1121201023 is an apocalyptic number.

1121201023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121201023 is an equidigital number, since it uses as much as digits as its factorization.

1121201023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1121201023 is about 33484.3399666172. The cubic root of 1121201023 is about 1038.8698963833.

Adding to 1121201023 its reverse (3201021211), we get a palindrome (4322222234).

The spelling of 1121201023 in words is "one billion, one hundred twenty-one million, two hundred one thousand, twenty-three".