1121323429 has 2 divisors, whose sum is σ = 1121323430. Its totient is φ = 1121323428.

The previous prime is 1121323421. The next prime is 1121323459. The reversal of 1121323429 is 9243231211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1061260929 + 60062500 = 32577^2 + 7750^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121323429 - 2³ = 1121323421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121323397 and 1121323406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121323421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560661714 + 560661715.

It is an arithmetic number, because the mean of its divisors is an integer number (560661715).

Almost surely, 2^1121323429 is an apocalyptic number.

It is an amenable number.

1121323429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121323429 is an equidigital number, since it uses as much as digits as its factorization.

1121323429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 1121323429 is about 33486.1677263911. The cubic root of 1121323429 is about 1038.9077008682.

The spelling of 1121323429 in words is "one billion, one hundred twenty-one million, three hundred twenty-three thousand, four hundred twenty-nine".