102215343321 has 96 divisors (see below), whose sum is σ = 183594844160. Its totient is φ = 53360560512.

The previous prime is 102215343317. The next prime is 102215343331. The reversal of 102215343321 is 123343512201.

102215343321 is a `hidden beast` number, since 1 + 0 + 221 + 5 + 3 + 433 + 2 + 1 = 666.

It is not a de Polignac number, because 102215343321 - 2² = 102215343317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102215343331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54397860 + ... + 54399738.

Almost surely, 2^102215343321 is an apocalyptic number.

It is an amenable number.

102215343321 is a deficient number, since it is larger than the sum of its proper divisors (81379500839).

102215343321 is a wasteful number, since it uses less digits than its factorization.

102215343321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555 (or 2552 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 102215343321 its reverse (123343512201), we get a palindrome (225558855522).

The spelling of 102215343321 in words is "one hundred two billion, two hundred fifteen million, three hundred forty-three thousand, three hundred twenty-one".