21322102315 has 8 divisors (see below), whose sum is σ = 25623988848. Its totient is φ = 17032704480.

The previous prime is 21322102313. The next prime is 21322102363. The reversal of 21322102315 is 51320122312.

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

It is not a de Polignac number, because 21322102315 - 2¹ = 21322102313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21322102313) 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, 3118416 + ... + 3125245.

It is an arithmetic number, because the mean of its divisors is an integer number (3202998606).

Almost surely, 2^21322102315 is an apocalyptic number.

21322102315 is a deficient number, since it is larger than the sum of its proper divisors (4301886533).

21322102315 is an equidigital number, since it uses as much as digits as its factorization.

21322102315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6244349.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 21322102315 its reverse (51320122312), we get a palindrome (72642224627).

The spelling of 21322102315 in words is "twenty-one billion, three hundred twenty-two million, one hundred two thousand, three hundred fifteen".