315440205105 has 8 divisors (see below), whose sum is σ = 504704328192. Its totient is φ = 168234776048.

The previous prime is 315440205103. The next prime is 315440205133. The reversal of 315440205105 is 501502044513.

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 315440205105 - 2¹ = 315440205103 is a prime.

It is a super-2 number, since 2×315440205105² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (315440205103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10514673489 + ... + 10514673518.

It is an arithmetic number, because the mean of its divisors is an integer number (63088041024).

Almost surely, 2^315440205105 is an apocalyptic number.

It is an amenable number.

315440205105 is a deficient number, since it is larger than the sum of its proper divisors (189264123087).

315440205105 is a wasteful number, since it uses less digits than its factorization.

315440205105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21029347015.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 315440205105 its reverse (501502044513), we get a palindrome (816942249618).

The spelling of 315440205105 in words is "three hundred fifteen billion, four hundred forty million, two hundred five thousand, one hundred five".