243115243293 has 32 divisors (see below), whose sum is σ = 361923466240. Its totient is φ = 144150865920.

The previous prime is 243115243291. The next prime is 243115243303. The reversal of 243115243293 is 392342511342.

It is not a de Polignac number, because 243115243293 - 2¹ = 243115243291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243115243291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162196 + ... + 715917.

It is an arithmetic number, because the mean of its divisors is an integer number (11310108320).

Almost surely, 2^243115243293 is an apocalyptic number.

It is an amenable number.

243115243293 is a deficient number, since it is larger than the sum of its proper divisors (118808222947).

243115243293 is a wasteful number, since it uses less digits than its factorization.

243115243293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878389.

The product of its digits is 155520, while the sum is 39.

The spelling of 243115243293 in words is "two hundred forty-three billion, one hundred fifteen million, two hundred forty-three thousand, two hundred ninety-three".