2143323453 has 8 divisors (see below), whose sum is σ = 2865306400. Its totient is φ = 1425111408.

The previous prime is 2143323431. The next prime is 2143323463. The reversal of 2143323453 is 3543233412.

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

It is not a de Polignac number, because 2143323453 - 2¹² = 2143319357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2143323453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143323463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941398 + ... + 943671.

It is an arithmetic number, because the mean of its divisors is an integer number (358163300).

Almost surely, 2^2143323453 is an apocalyptic number.

It is an amenable number.

2143323453 is a deficient number, since it is larger than the sum of its proper divisors (721982947).

2143323453 is a wasteful number, since it uses less digits than its factorization.

2143323453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885451.

The product of its digits is 25920, while the sum is 30.

The square root of 2143323453 is about 46296.0414398467. The cubic root of 2143323453 is about 1289.3254997994.

Adding to 2143323453 its reverse (3543233412), we get a palindrome (5686556865).

The spelling of 2143323453 in words is "two billion, one hundred forty-three million, three hundred twenty-three thousand, four hundred fifty-three".