243431400103 has 4 divisors (see below), whose sum is σ = 243511558360. Its totient is φ = 243351241848.

The previous prime is 243431400101. The next prime is 243431400161. The reversal of 243431400103 is 301004134342.

243431400103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 243431400103 - 2¹ = 243431400101 is a prime.

It is a super-2 number, since 2×243431400103² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243431400101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40074573 + ... + 40080646.

It is an arithmetic number, because the mean of its divisors is an integer number (60877889590).

Almost surely, 2^243431400103 is an apocalyptic number.

243431400103 is a deficient number, since it is larger than the sum of its proper divisors (80158257).

243431400103 is an equidigital number, since it uses as much as digits as its factorization.

243431400103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80158256.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 243431400103 its reverse (301004134342), we get a palindrome (544435534445).

The spelling of 243431400103 in words is "two hundred forty-three billion, four hundred thirty-one million, four hundred thousand, one hundred three".