1103020109 has 2 divisors, whose sum is σ = 1103020110. Its totient is φ = 1103020108.

The previous prime is 1103020103. The next prime is 1103020141. The reversal of 1103020109 is 9010203011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1078794025 + 24226084 = 32845^2 + 4922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103020109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103020103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551510054 + 551510055.

It is an arithmetic number, because the mean of its divisors is an integer number (551510055).

Almost surely, 2^1103020109 is an apocalyptic number.

It is an amenable number.

1103020109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103020109 is an equidigital number, since it uses as much as digits as its factorization.

1103020109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 1103020109 is about 33211.7465514839. The cubic root of 1103020109 is about 1033.2239789816.

The spelling of 1103020109 in words is "one billion, one hundred three million, twenty thousand, one hundred nine".