243322401403 has 4 divisors (see below), whose sum is σ = 249898682560. Its totient is φ = 236746120248.

The previous prime is 243322401391. The next prime is 243322401409. The reversal of 243322401403 is 304104223342.

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-243322401403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243322401409) 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, 3288140523 + ... + 3288140596.

It is an arithmetic number, because the mean of its divisors is an integer number (62474670640).

Almost surely, 2^243322401403 is an apocalyptic number.

243322401403 is a deficient number, since it is larger than the sum of its proper divisors (6576281157).

243322401403 is an equidigital number, since it uses as much as digits as its factorization.

243322401403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6576281156.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 243322401403 its reverse (304104223342), we get a palindrome (547426624745).

The spelling of 243322401403 in words is "two hundred forty-three billion, three hundred twenty-two million, four hundred one thousand, four hundred three".