1020532109 has 2 divisors, whose sum is σ = 1020532110. Its totient is φ = 1020532108.

The previous prime is 1020532067. The next prime is 1020532133. The reversal of 1020532109 is 9012350201.

1020532109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 865654084 + 154878025 = 29422^2 + 12445^2 .

It is an emirp because it is prime and its reverse (9012350201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020532109 - 2¹² = 1020528013 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020532159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510266054 + 510266055.

It is an arithmetic number, because the mean of its divisors is an integer number (510266055).

Almost surely, 2^1020532109 is an apocalyptic number.

It is an amenable number.

1020532109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020532109 is an equidigital number, since it uses as much as digits as its factorization.

1020532109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1020532109 is about 31945.7682487055. The cubic root of 1020532109 is about 1006.7977225955.

The spelling of 1020532109 in words is "one billion, twenty million, five hundred thirty-two thousand, one hundred nine".