4243210323442 has 4 divisors (see below), whose sum is σ = 6364815485166. Its totient is φ = 2121605161720.

The previous prime is 4243210323433. The next prime is 4243210323449. The reversal of 4243210323442 is 2443230123424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2783895587001 + 1459314736441 = 1668501^2 + 1208021^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4243210323398 and 4243210323407.

It is not an unprimeable number, because it can be changed into a prime (4243210323449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060802580859 + ... + 1060802580862.

Almost surely, 2^{4243210323442} is an apocalyptic number.

4243210323442 is a deficient number, since it is larger than the sum of its proper divisors (2121605161724).

4243210323442 is a wasteful number, since it uses less digits than its factorization.

4243210323442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121605161723.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 4243210323442 its reverse (2443230123424), we get a palindrome (6686440446866).

The spelling of 4243210323442 in words is "four trillion, two hundred forty-three billion, two hundred ten million, three hundred twenty-three thousand, four hundred forty-two".