102120386 has 16 divisors (see below), whose sum is σ = 160807680. Its totient is φ = 48573840.

The previous prime is 102120371. The next prime is 102120433. The reversal of 102120386 is 683021201.

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, 10301 + ... + 17616.

It is an arithmetic number, because the mean of its divisors is an integer number (10050480).

Almost surely, 2^102120386 is an apocalyptic number.

102120386 is a deficient number, since it is larger than the sum of its proper divisors (58687294).

102120386 is a wasteful number, since it uses less digits than its factorization.

102120386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28009.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 102120386 is about 10105.4631759262. The cubic root of 102120386 is about 467.4166185284.

Adding to 102120386 its reverse (683021201), we get a palindrome (785141587).

The spelling of 102120386 in words is "one hundred two million, one hundred twenty thousand, three hundred eighty-six".