2153172303 has 12 divisors (see below), whose sum is σ = 3152743360. Its totient is φ = 1415784096.

The previous prime is 2153172299. The next prime is 2153172331. The reversal of 2153172303 is 3032713512.

It is not a de Polignac number, because 2153172303 - 2² = 2153172299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153172353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1637983 + ... + 1639296.

Almost surely, 2^2153172303 is an apocalyptic number.

2153172303 is a deficient number, since it is larger than the sum of its proper divisors (999571057).

2153172303 is a wasteful number, since it uses less digits than its factorization.

2153172303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277358 (or 3277355 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 2153172303 is about 46402.2876914490. The cubic root of 2153172303 is about 1291.2973553472.

Adding to 2153172303 its reverse (3032713512), we get a palindrome (5185885815).

The spelling of 2153172303 in words is "two billion, one hundred fifty-three million, one hundred seventy-two thousand, three hundred three".