102421315 has 8 divisors (see below), whose sum is σ = 122971968. Its totient is φ = 81892800.

The previous prime is 102421283. The next prime is 102421331. The reversal of 102421315 is 513124201.

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

It is not a de Polignac number, because 102421315 - 2⁵ = 102421283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102421292 and 102421301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7399 + ... + 16111.

It is an arithmetic number, because the mean of its divisors is an integer number (15371496).

Almost surely, 2^102421315 is an apocalyptic number.

102421315 is a deficient number, since it is larger than the sum of its proper divisors (20550653).

102421315 is an equidigital number, since it uses as much as digits as its factorization.

102421315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11069.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 102421315 is about 10120.3416444308. The cubic root of 102421315 is about 467.8752970277.

Adding to 102421315 its reverse (513124201), we get a palindrome (615545516).

The spelling of 102421315 in words is "one hundred two million, four hundred twenty-one thousand, three hundred fifteen".