243134023315 has 8 divisors (see below), whose sum is σ = 291988240848. Its totient is φ = 194355610080.

The previous prime is 243134023277. The next prime is 243134023427. The reversal of 243134023315 is 513320431342.

It is a happy number.

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

It is not a de Polignac number, because 243134023315 - 2²³ = 243125634707 is a prime.

It is a super-2 number, since 2×243134023315² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18944016 + ... + 18956845.

It is an arithmetic number, because the mean of its divisors is an integer number (36498530106).

Almost surely, 2^243134023315 is an apocalyptic number.

243134023315 is a deficient number, since it is larger than the sum of its proper divisors (48854217533).

243134023315 is a wasteful number, since it uses less digits than its factorization.

243134023315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37902149.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 243134023315 its reverse (513320431342), we get a palindrome (756454454657).

The spelling of 243134023315 in words is "two hundred forty-three billion, one hundred thirty-four million, twenty-three thousand, three hundred fifteen".