4131223420243 has 4 divisors (see below), whose sum is σ = 4131502063480. Its totient is φ = 4130944777008.

The previous prime is 4131223420237. The next prime is 4131223420279. The reversal of 4131223420243 is 3420243221314.

4131223420243 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 4131223420243 - 2²¹ = 4131221323091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4131223490243) 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, 139299378 + ... + 139329031.

It is an arithmetic number, because the mean of its divisors is an integer number (1032875515870).

Almost surely, 2^{4131223420243} is an apocalyptic number.

4131223420243 is a deficient number, since it is larger than the sum of its proper divisors (278643237).

4131223420243 is a wasteful number, since it uses less digits than its factorization.

4131223420243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278643236.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 4131223420243 its reverse (3420243221314), we get a palindrome (7551466641557).

The spelling of 4131223420243 in words is "four trillion, one hundred thirty-one billion, two hundred twenty-three million, four hundred twenty thousand, two hundred forty-three".