102102321505 has 8 divisors (see below), whose sum is σ = 128971353600. Its totient is φ = 77382812016.

The previous prime is 102102321479. The next prime is 102102321569. The reversal of 102102321505 is 505123201201.

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 102102321505 - 2⁵ = 102102321473 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 537380545 + ... + 537380734.

It is an arithmetic number, because the mean of its divisors is an integer number (16121419200).

Almost surely, 2^102102321505 is an apocalyptic number.

It is an amenable number.

102102321505 is a deficient number, since it is larger than the sum of its proper divisors (26869032095).

102102321505 is a wasteful number, since it uses less digits than its factorization.

102102321505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074761303.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 102102321505 its reverse (505123201201), we get a palindrome (607225522706).

The spelling of 102102321505 in words is "one hundred two billion, one hundred two million, three hundred twenty-one thousand, five hundred five".