1030421999 has 2 divisors, whose sum is σ = 1030422000. Its totient is φ = 1030421998.

The previous prime is 1030421947. The next prime is 1030422049. The reversal of 1030421999 is 9991240301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1030421999 - 2¹² = 1030417903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030471999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515210999 + 515211000.

It is an arithmetic number, because the mean of its divisors is an integer number (515211000).

Almost surely, 2^1030421999 is an apocalyptic number.

1030421999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030421999 is an equidigital number, since it uses as much as digits as its factorization.

1030421999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 1030421999 is about 32100.1868997674. The cubic root of 1030421999 is about 1010.0395367329.

The spelling of 1030421999 in words is "one billion, thirty million, four hundred twenty-one thousand, nine hundred ninety-nine".