102155322105 has 24 divisors (see below), whose sum is σ = 178463480832. Its totient is φ = 54053836704.

The previous prime is 102155321999. The next prime is 102155322121. The reversal of 102155322105 is 501223551201.

102155322105 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 553 + 2 + 2 + 105 = 666.

It is not a de Polignac number, because 102155322105 - 2¹³ = 102155313913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8931759 + ... + 8943188.

It is an arithmetic number, because the mean of its divisors is an integer number (7435978368).

Almost surely, 2^102155322105 is an apocalyptic number.

102155322105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102155322105 is a deficient number, since it is larger than the sum of its proper divisors (76308158727).

102155322105 is a wasteful number, since it uses less digits than its factorization.

102155322105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17875085 (or 17875082 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 102155322105 its reverse (501223551201), we get a palindrome (603378873306).

The spelling of 102155322105 in words is "one hundred two billion, one hundred fifty-five million, three hundred twenty-two thousand, one hundred five".