2173372231 has 4 divisors (see below), whose sum is σ = 2174233464. Its totient is φ = 2172511000.

The previous prime is 2173372213. The next prime is 2173372241. The reversal of 2173372231 is 1322733712.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2173372231 - 2⁹ = 2173371719 is a prime.

It is a super-2 number, since 2×2173372231² = 9447093708963834722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2173372193 and 2173372202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173372241) 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 3 ways as a sum of consecutive naturals, for example, 426820 + ... + 431881.

It is an arithmetic number, because the mean of its divisors is an integer number (543558366).

Almost surely, 2^2173372231 is an apocalyptic number.

2173372231 is a deficient number, since it is larger than the sum of its proper divisors (861233).

2173372231 is an equidigital number, since it uses as much as digits as its factorization.

2173372231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861232.

The product of its digits is 10584, while the sum is 31.

The square root of 2173372231 is about 46619.4404835579. The cubic root of 2173372231 is about 1295.3228834674.

The spelling of 2173372231 in words is "two billion, one hundred seventy-three million, three hundred seventy-two thousand, two hundred thirty-one".