315340123243 has 8 divisors (see below), whose sum is σ = 329201625600. Its totient is φ = 301491209448.

The previous prime is 315340123223. The next prime is 315340123247. The reversal of 315340123243 is 342321043513.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 315340123243 - 2⁵ = 315340123211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315340123247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3095923 + ... + 3196156.

It is an arithmetic number, because the mean of its divisors is an integer number (41150203200).

Almost surely, 2^315340123243 is an apocalyptic number.

315340123243 is a deficient number, since it is larger than the sum of its proper divisors (13861502357).

315340123243 is a wasteful number, since it uses less digits than its factorization.

315340123243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6294281.

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

Adding to 315340123243 its reverse (342321043513), we get a palindrome (657661166756).

The spelling of 315340123243 in words is "three hundred fifteen billion, three hundred forty million, one hundred twenty-three thousand, two hundred forty-three".