243204001403 has 16 divisors (see below), whose sum is σ = 273674081760. Its totient is φ = 214179552000.

The previous prime is 243204001373. The next prime is 243204001409. The reversal of 243204001403 is 304100402342.

It is a cyclic number.

It is not a de Polignac number, because 243204001403 - 2¹² = 243203997307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243204001409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1211498 + ... + 1397903.

It is an arithmetic number, because the mean of its divisors is an integer number (17104630110).

Almost surely, 2^243204001403 is an apocalyptic number.

243204001403 is a deficient number, since it is larger than the sum of its proper divisors (30470080357).

243204001403 is a wasteful number, since it uses less digits than its factorization.

243204001403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609678.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 243204001403 its reverse (304100402342), we get a palindrome (547304403745).

The spelling of 243204001403 in words is "two hundred forty-three billion, two hundred four million, one thousand, four hundred three".