1010503421 has 2 divisors, whose sum is σ = 1010503422. Its totient is φ = 1010503420.

The previous prime is 1010503379. The next prime is 1010503469. The reversal of 1010503421 is 1243050101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 972816100 + 37687321 = 31190^2 + 6139^2 .

It is an emirp because it is prime and its reverse (1243050101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010503421 is a prime.

It is a super-2 number, since 2×1010503421² = 2042234327705406482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1010503421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010503471) 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, 505251710 + 505251711.

It is an arithmetic number, because the mean of its divisors is an integer number (505251711).

Almost surely, 2^1010503421 is an apocalyptic number.

It is an amenable number.

1010503421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010503421 is an equidigital number, since it uses as much as digits as its factorization.

1010503421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1010503421 is about 31788.4164594589. The cubic root of 1010503421 is about 1003.4889533809.

Adding to 1010503421 its reverse (1243050101), we get a palindrome (2253553522).

The spelling of 1010503421 in words is "one billion, ten million, five hundred three thousand, four hundred twenty-one".