315103542243 has 16 divisors (see below), whose sum is σ = 480989959680. Its totient is φ = 179747099136.

The previous prime is 315103542227. The next prime is 315103542251. The reversal of 315103542243 is 342245301513.

It is not a de Polignac number, because 315103542243 - 2⁴ = 315103542227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315103542203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12990423 + ... + 13014656.

It is an arithmetic number, because the mean of its divisors is an integer number (30061872480).

Almost surely, 2^315103542243 is an apocalyptic number.

315103542243 is a deficient number, since it is larger than the sum of its proper divisors (165886417437).

315103542243 is a wasteful number, since it uses less digits than its factorization.

315103542243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26005666.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 315103542243 its reverse (342245301513), we get a palindrome (657348843756).

It can be divided in two parts, 31510 and 3542243, that added together give a palindrome (3573753).

The spelling of 315103542243 in words is "three hundred fifteen billion, one hundred three million, five hundred forty-two thousand, two hundred forty-three".