315112203323221 has 8 divisors (see below), whose sum is σ = 315649945173024. Its totient is φ = 314574464616720.

The previous prime is 315112203323219. The next prime is 315112203323227. The reversal of 315112203323221 is 122323302211513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315112203323221 - 2¹ = 315112203323219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315112203323227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294292806 + ... + 295361608.

It is an arithmetic number, because the mean of its divisors is an integer number (39456243146628).

Almost surely, 2^{315112203323221} is an apocalyptic number.

It is an amenable number.

315112203323221 is a deficient number, since it is larger than the sum of its proper divisors (537741849803).

315112203323221 is a wasteful number, since it uses less digits than its factorization.

315112203323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571651.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 315112203323221 its reverse (122323302211513), we get a palindrome (437435505534734).

The spelling of 315112203323221 in words is "three hundred fifteen trillion, one hundred twelve billion, two hundred three million, three hundred twenty-three thousand, two hundred twenty-one".