2123161343 has 8 divisors (see below), whose sum is σ = 2233729680. Its totient is φ = 2015392320.

The previous prime is 2123161333. The next prime is 2123161367. The reversal of 2123161343 is 3431613212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123161343 - 2¹² = 2123157247 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 (2123161333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698273 + ... + 701306.

It is an arithmetic number, because the mean of its divisors is an integer number (279216210).

Almost surely, 2^2123161343 is an apocalyptic number.

2123161343 is a deficient number, since it is larger than the sum of its proper divisors (110568337).

2123161343 is a wasteful number, since it uses less digits than its factorization.

2123161343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399657.

The product of its digits is 2592, while the sum is 26.

The square root of 2123161343 is about 46077.7749354285. The cubic root of 2123161343 is about 1285.2698879487.

Adding to 2123161343 its reverse (3431613212), we get a palindrome (5554774555).

The spelling of 2123161343 in words is "two billion, one hundred twenty-three million, one hundred sixty-one thousand, three hundred forty-three".