315320240555 has 4 divisors (see below), whose sum is σ = 378384288672. Its totient is φ = 252256192440.

The previous prime is 315320240519. The next prime is 315320240561. The reversal of 315320240555 is 555042023513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 555042023513 = 6151 ⋅90236063.

It is not a de Polignac number, because 315320240555 - 2¹² = 315320236459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31532024051 + ... + 31532024060.

It is an arithmetic number, because the mean of its divisors is an integer number (94596072168).

Almost surely, 2^315320240555 is an apocalyptic number.

315320240555 is a deficient number, since it is larger than the sum of its proper divisors (63064048117).

315320240555 is an equidigital number, since it uses as much as digits as its factorization.

315320240555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63064048116.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 315320240555 in words is "three hundred fifteen billion, three hundred twenty million, two hundred forty thousand, five hundred fifty-five".