2143353403 has 4 divisors (see below), whose sum is σ = 2153511688. Its totient is φ = 2133195120.

The previous prime is 2143353397. The next prime is 2143353449. The reversal of 2143353403 is 3043533412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2143353403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143353493) 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, 5078826 + ... + 5079247.

It is an arithmetic number, because the mean of its divisors is an integer number (538377922).

Almost surely, 2^2143353403 is an apocalyptic number.

2143353403 is a deficient number, since it is larger than the sum of its proper divisors (10158285).

2143353403 is a wasteful number, since it uses less digits than its factorization.

2143353403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10158284.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 2143353403 is about 46296.3649004973. The cubic root of 2143353403 is about 1289.3315052888.

Adding to 2143353403 its reverse (3043533412), we get a palindrome (5186886815).

Subtracting 2143353403 from its reverse (3043533412), we obtain a square (900180009 = 30003²).

The spelling of 2143353403 in words is "two billion, one hundred forty-three million, three hundred fifty-three thousand, four hundred three".