315101344243 has 4 divisors (see below), whose sum is σ = 360115822000. Its totient is φ = 270086866488.

The previous prime is 315101344241. The next prime is 315101344249. The reversal of 315101344243 is 342443101513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315101344243 - 2¹ = 315101344241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315101344241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22507238868 + ... + 22507238881.

It is an arithmetic number, because the mean of its divisors is an integer number (90028955500).

Almost surely, 2^315101344243 is an apocalyptic number.

315101344243 is a deficient number, since it is larger than the sum of its proper divisors (45014477757).

315101344243 is an equidigital number, since it uses as much as digits as its factorization.

315101344243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45014477756.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 315101344243 its reverse (342443101513), we get a palindrome (657544445756).

It can be divided in two parts, 315101 and 344243, that added together give a square (659344 = 812²).

The spelling of 315101344243 in words is "three hundred fifteen billion, one hundred one million, three hundred forty-four thousand, two hundred forty-three".