243120244315 has 16 divisors (see below), whose sum is σ = 327846431808. Its totient is φ = 171729081216.

The previous prime is 243120244307. The next prime is 243120244369. The reversal of 243120244315 is 513442021342.

It is not a de Polignac number, because 243120244315 - 2³ = 243120244307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81309624 + ... + 81312613.

It is an arithmetic number, because the mean of its divisors is an integer number (20490401988).

Almost surely, 2^243120244315 is an apocalyptic number.

243120244315 is a deficient number, since it is larger than the sum of its proper divisors (84726187493).

243120244315 is a wasteful number, since it uses less digits than its factorization.

243120244315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162622278.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 243120244315 its reverse (513442021342), we get a palindrome (756562265657).

The spelling of 243120244315 in words is "two hundred forty-three billion, one hundred twenty million, two hundred forty-four thousand, three hundred fifteen".