2161035303 has 32 divisors (see below), whose sum is σ = 3412108800. Its totient is φ = 1191006336.

The previous prime is 2161035287. The next prime is 2161035313. The reversal of 2161035303 is 3035301612.

It is a happy number.

It is not a de Polignac number, because 2161035303 - 2⁴ = 2161035287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161035313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49213 + ... + 82121.

It is an arithmetic number, because the mean of its divisors is an integer number (106628400).

Almost surely, 2^2161035303 is an apocalyptic number.

2161035303 is a deficient number, since it is larger than the sum of its proper divisors (1251073497).

2161035303 is a wasteful number, since it uses less digits than its factorization.

2161035303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33031.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 2161035303 is about 46486.9369070495. The cubic root of 2161035303 is about 1292.8673081329.

Adding to 2161035303 its reverse (3035301612), we get a palindrome (5196336915).

The spelling of 2161035303 in words is "two billion, one hundred sixty-one million, thirty-five thousand, three hundred three".