102309409321 has 12 divisors (see below), whose sum is σ = 121545180288. Its totient is φ = 85827952392.

The previous prime is 102309409277. The next prime is 102309409351. The reversal of 102309409321 is 123904903201.

It is not a de Polignac number, because 102309409321 - 2¹⁷ = 102309278249 is a prime.

It is a super-2 number, since 2×102309409321² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102309409351) 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 11 ways as a sum of consecutive naturals, for example, 22209901 + ... + 22214506.

It is an arithmetic number, because the mean of its divisors is an integer number (10128765024).

Almost surely, 2^102309409321 is an apocalyptic number.

It is an amenable number.

102309409321 is a deficient number, since it is larger than the sum of its proper divisors (19235770967).

102309409321 is an equidigital number, since it uses as much as digits as its factorization.

102309409321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44424468 (or 44424461 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 102309409321 in words is "one hundred two billion, three hundred nine million, four hundred nine thousand, three hundred twenty-one".