2122431673 has 4 divisors (see below), whose sum is σ = 2130690420. Its totient is φ = 2114172928.

The previous prime is 2122431601. The next prime is 2122431677. The reversal of 2122431673 is 3761342212.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1251178384 + 871253289 = 35372^2 + 29517^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122431673 - 2⁹ = 2122431161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122431677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4128988 + ... + 4129501.

It is an arithmetic number, because the mean of its divisors is an integer number (532672605).

Almost surely, 2^2122431673 is an apocalyptic number.

It is an amenable number.

2122431673 is a deficient number, since it is larger than the sum of its proper divisors (8258747).

2122431673 is an equidigital number, since it uses as much as digits as its factorization.

2122431673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8258746.

The product of its digits is 12096, while the sum is 31.

The square root of 2122431673 is about 46069.8564464879. The cubic root of 2122431673 is about 1285.1226342104.

Adding to 2122431673 its reverse (3761342212), we get a palindrome (5883773885).

The spelling of 2122431673 in words is "two billion, one hundred twenty-two million, four hundred thirty-one thousand, six hundred seventy-three".