243503303305342 has 4 divisors (see below), whose sum is σ = 365254954958016. Its totient is φ = 121751651652670.

The previous prime is 243503303305337. The next prime is 243503303305343.

243503303305342 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×243503303305342² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243503303305295 and 243503303305304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243503303305343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60875825826334 + ... + 60875825826337.

It is an arithmetic number, because the mean of its divisors is an integer number (91313738739504).

Almost surely, 2^{243503303305342} is an apocalyptic number.

243503303305342 is a deficient number, since it is larger than the sum of its proper divisors (121751651652674).

243503303305342 is a wasteful number, since it uses less digits than its factorization.

243503303305342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121751651652673.

The product of its (nonzero) digits is 1166400, while the sum is 40.

It can be divided in two parts, 24350330 and 3305342, that added together give a palindrome (27655672).

The spelling of 243503303305342 in words is "two hundred forty-three trillion, five hundred three billion, three hundred three million, three hundred five thousand, three hundred forty-two".