315143320334 has 16 divisors (see below), whose sum is σ = 489046651920. Its totient is φ = 152128462080.

The previous prime is 315143320277. The next prime is 315143320343. The reversal of 315143320334 is 433023341513.

It is a super-2 number, since 2×315143320334² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 315143320334.

It is a congruent 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, 791057 + ... + 1120739.

It is an arithmetic number, because the mean of its divisors is an integer number (30565415745).

Almost surely, 2^315143320334 is an apocalyptic number.

315143320334 is a deficient number, since it is larger than the sum of its proper divisors (173903331586).

315143320334 is a wasteful number, since it uses less digits than its factorization.

315143320334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346195.

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 315143320334 its reverse (433023341513), we get a palindrome (748166661847).

The spelling of 315143320334 in words is "three hundred fifteen billion, one hundred forty-three million, three hundred twenty thousand, three hundred thirty-four".