243512215342 has 8 divisors (see below), whose sum is σ = 398474534232. Its totient is φ = 110687370600.

The previous prime is 243512215327. The next prime is 243512215357.

243512215342 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (243512215327) and next prime (243512215357).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 243512215298 and 243512215307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5534368509 + ... + 5534368552.

It is an arithmetic number, because the mean of its divisors is an integer number (49809316779).

Almost surely, 2^243512215342 is an apocalyptic number.

243512215342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243512215342 is a deficient number, since it is larger than the sum of its proper divisors (154962318890).

243512215342 is a wasteful number, since it uses less digits than its factorization.

243512215342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11068737074.

The product of its digits is 57600, while the sum is 34.

It can be divided in two parts, 243512 and 215342, that added together give a palindrome (458854).

The spelling of 243512215342 in words is "two hundred forty-three billion, five hundred twelve million, two hundred fifteen thousand, three hundred forty-two".