342218812243 has 16 divisors (see below), whose sum is σ = 433656887040. Its totient is φ = 262292464800.

The previous prime is 342218812157. The next prime is 342218812283.

342218812243 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342218812243 is a prime.

It is a super-2 number, since 2×342218812243² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342218812196 and 342218812205.

It is not an unprimeable number, because it can be changed into a prime (342218812283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36424813 + ... + 36434206.

It is an arithmetic number, because the mean of its divisors is an integer number (27103555440).

Almost surely, 2^342218812243 is an apocalyptic number.

342218812243 is a deficient number, since it is larger than the sum of its proper divisors (91438074797).

342218812243 is a wasteful number, since it uses less digits than its factorization.

342218812243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72859098.

The product of its digits is 147456, while the sum is 40.

The spelling of 342218812243 in words is "three hundred forty-two billion, two hundred eighteen million, eight hundred twelve thousand, two hundred forty-three".