243155041340 has 12 divisors (see below), whose sum is σ = 510625586856. Its totient is φ = 97262016528.

The previous prime is 243155041289. The next prime is 243155041361. The reversal of 243155041340 is 43140551342.

It is a junction number, because it is equal to n+sod(n) for n = 243155041297 and 243155041306.

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, 6078876014 + ... + 6078876053.

It is an arithmetic number, because the mean of its divisors is an integer number (42552132238).

Almost surely, 2^243155041340 is an apocalyptic number.

243155041340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243155041340 is an abundant number, since it is smaller than the sum of its proper divisors (267470545516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243155041340 is a wasteful number, since it uses less digits than its factorization.

243155041340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12157752076 (or 12157752074 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 243155041340 its reverse (43140551342), we get a palindrome (286295592682).

The spelling of 243155041340 in words is "two hundred forty-three billion, one hundred fifty-five million, forty-one thousand, three hundred forty".