243113122455 has 48 divisors (see below), whose sum is σ = 452678160384. Its totient is φ = 111090745920.

The previous prime is 243113122379. The next prime is 243113122493. The reversal of 243113122455 is 554221311342.

It is not a de Polignac number, because 243113122455 - 2¹⁶ = 243113056919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1712650 + ... + 1849160.

It is an arithmetic number, because the mean of its divisors is an integer number (9430795008).

Almost surely, 2^243113122455 is an apocalyptic number.

243113122455 is a deficient number, since it is larger than the sum of its proper divisors (209565037929).

243113122455 is a wasteful number, since it uses less digits than its factorization.

243113122455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138956 (or 138949 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

Adding to 243113122455 its reverse (554221311342), we get a palindrome (797334433797).

The spelling of 243113122455 in words is "two hundred forty-three billion, one hundred thirteen million, one hundred twenty-two thousand, four hundred fifty-five".