3200720103 has 40 divisors (see below), whose sum is σ = 5484087840. Its totient is φ = 1822383360.

The previous prime is 3200720077. The next prime is 3200720137. The reversal of 3200720103 is 3010270023.

It is not a de Polignac number, because 3200720103 - 2⁵ = 3200720071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3200720903) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 149283 + ... + 169371.

It is an arithmetic number, because the mean of its divisors is an integer number (137102196).

Almost surely, 2^3200720103 is an apocalyptic number.

3200720103 is a deficient number, since it is larger than the sum of its proper divisors (2283367737).

3200720103 is a wasteful number, since it uses less digits than its factorization.

3200720103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20389 (or 20380 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 3200720103 is about 56574.9070083195. The cubic root of 3200720103 is about 1473.7231279213.

Adding to 3200720103 its reverse (3010270023), we get a palindrome (6210990126).

The spelling of 3200720103 in words is "three billion, two hundred million, seven hundred twenty thousand, one hundred three".