315434439291 has 4 divisors (see below), whose sum is σ = 420579252392. Its totient is φ = 210289626192.

The previous prime is 315434439247. The next prime is 315434439319. The reversal of 315434439291 is 192934434513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192934434513 = 3 ⋅64311478171.

It is not a de Polignac number, because 315434439291 - 2¹¹ = 315434437243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315434439291.

It is not an unprimeable number, because it can be changed into a prime (315434439091) 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, 52572406546 + ... + 52572406551.

It is an arithmetic number, because the mean of its divisors is an integer number (105144813098).

Almost surely, 2^315434439291 is an apocalyptic number.

315434439291 is a deficient number, since it is larger than the sum of its proper divisors (105144813101).

315434439291 is a wasteful number, since it uses less digits than its factorization.

315434439291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105144813100.

The product of its digits is 1399680, while the sum is 48.

The spelling of 315434439291 in words is "three hundred fifteen billion, four hundred thirty-four million, four hundred thirty-nine thousand, two hundred ninety-one".