2103432109 has 2 divisors, whose sum is σ = 2103432110. Its totient is φ = 2103432108.

The previous prime is 2103432101. The next prime is 2103432127. The reversal of 2103432109 is 9012343012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1742812009 + 360620100 = 41747^2 + 18990^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103432109 - 2³ = 2103432101 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103432101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051716054 + 1051716055.

It is an arithmetic number, because the mean of its divisors is an integer number (1051716055).

Almost surely, 2^2103432109 is an apocalyptic number.

It is an amenable number.

2103432109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103432109 is an equidigital number, since it uses as much as digits as its factorization.

2103432109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2103432109 is about 45863.1890408855. The cubic root of 2103432109 is about 1281.2764181775.

The spelling of 2103432109 in words is "two billion, one hundred three million, four hundred thirty-two thousand, one hundred nine".