315223312443 has 32 divisors (see below), whose sum is σ = 456443404032. Its totient is φ = 192353616000.

The previous prime is 315223312423. The next prime is 315223312463. The reversal of 315223312443 is 344213322513.

It is an interprime number because it is at equal distance from previous prime (315223312423) and next prime (315223312463).

It is not a de Polignac number, because 315223312443 - 2¹³ = 315223304251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315223312423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2953968 + ... + 3058818.

It is an arithmetic number, because the mean of its divisors is an integer number (14263856376).

Almost surely, 2^315223312443 is an apocalyptic number.

315223312443 is a deficient number, since it is larger than the sum of its proper divisors (141220091589).

315223312443 is a wasteful number, since it uses less digits than its factorization.

315223312443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105515.

The product of its digits is 51840, while the sum is 33.

Adding to 315223312443 its reverse (344213322513), we get a palindrome (659436634956).

The spelling of 315223312443 in words is "three hundred fifteen billion, two hundred twenty-three million, three hundred twelve thousand, four hundred forty-three".