315456032243431 has 4 divisors (see below), whose sum is σ = 315619227295672. Its totient is φ = 315292837191192.

The previous prime is 315456032243419. The next prime is 315456032243491. The reversal of 315456032243431 is 134342230654513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315456032243431 - 2¹⁵ = 315456032210663 is a prime.

It is a super-2 number, since 2×315456032243431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315456032243491) 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, 81597523221 + ... + 81597527086.

It is an arithmetic number, because the mean of its divisors is an integer number (78904806823918).

Almost surely, 2^{315456032243431} is an apocalyptic number.

315456032243431 is a deficient number, since it is larger than the sum of its proper divisors (163195052241).

315456032243431 is a wasteful number, since it uses less digits than its factorization.

315456032243431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163195052240.

The product of its (nonzero) digits is 3110400, while the sum is 46.

Adding to 315456032243431 its reverse (134342230654513), we get a palindrome (449798262897944).

The spelling of 315456032243431 in words is "three hundred fifteen trillion, four hundred fifty-six billion, thirty-two million, two hundred forty-three thousand, four hundred thirty-one".