243320001403 has 4 divisors (see below), whose sum is σ = 257632942680. Its totient is φ = 229007060128.

The previous prime is 243320001401. The next prime is 243320001427. The reversal of 243320001403 is 304100023342.

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 243320001403 - 2¹ = 243320001401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243320001401) 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, 7156470613 + ... + 7156470646.

It is an arithmetic number, because the mean of its divisors is an integer number (64408235670).

Almost surely, 2^243320001403 is an apocalyptic number.

243320001403 is a deficient number, since it is larger than the sum of its proper divisors (14312941277).

243320001403 is a wasteful number, since it uses less digits than its factorization.

243320001403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14312941276.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 243320001403 its reverse (304100023342), we get a palindrome (547420024745).

The spelling of 243320001403 in words is "two hundred forty-three billion, three hundred twenty million, one thousand, four hundred three".