1020304501 has 2 divisors, whose sum is σ = 1020304502. Its totient is φ = 1020304500.

The previous prime is 1020304499. The next prime is 1020304543. The reversal of 1020304501 is 1054030201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 950180625 + 70123876 = 30825^2 + 8374^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020304501 - 2¹ = 1020304499 is a prime.

Together with 1020304499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020304561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510152250 + 510152251.

It is an arithmetic number, because the mean of its divisors is an integer number (510152251).

Almost surely, 2^1020304501 is an apocalyptic number.

It is an amenable number.

1020304501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020304501 is an equidigital number, since it uses as much as digits as its factorization.

1020304501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1020304501 is about 31942.2056376826. The cubic root of 1020304501 is about 1006.7228687513.

Adding to 1020304501 its reverse (1054030201), we get a palindrome (2074334702).

The spelling of 1020304501 in words is "one billion, twenty million, three hundred four thousand, five hundred one".