1024423121 has 2 divisors, whose sum is σ = 1024423122. Its totient is φ = 1024423120.

The previous prime is 1024423087. The next prime is 1024423129. The reversal of 1024423121 is 1213244201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1005587521 + 18835600 = 31711^2 + 4340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1024423121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1024423093 and 1024423102.

It is not a weakly prime, because it can be changed into another prime (1024423129) 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, 512211560 + 512211561.

It is an arithmetic number, because the mean of its divisors is an integer number (512211561).

Almost surely, 2^1024423121 is an apocalyptic number.

It is an amenable number.

1024423121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1024423121 is an equidigital number, since it uses as much as digits as its factorization.

1024423121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1024423121 is about 32006.6105828155. The cubic root of 1024423121 is about 1008.0756486777.

Adding to 1024423121 its reverse (1213244201), we get a palindrome (2237667322).

The spelling of 1024423121 in words is "one billion, twenty-four million, four hundred twenty-three thousand, one hundred twenty-one".