102120016 has 10 divisors (see below), whose sum is σ = 197857562. Its totient is φ = 51060000.

The previous prime is 102120013. The next prime is 102120017. The reversal of 102120016 is 610021201.

It can be written as a sum of positive squares in only one way, i.e., 94167616 + 7952400 = 9704^2 + 2820^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102119978 and 102120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3191235 + ... + 3191266.

Almost surely, 2^102120016 is an apocalyptic number.

102120016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102120016 is a deficient number, since it is larger than the sum of its proper divisors (95737546).

102120016 is an equidigital number, since it uses as much as digits as its factorization.

102120016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6382509 (or 6382503 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 102120016 is about 10105.4448689803. Note that the first 3 decimals coincide. The cubic root of 102120016 is about 467.4160540170.

Adding to 102120016 its reverse (610021201), we get a palindrome (712141217).

The spelling of 102120016 in words is "one hundred two million, one hundred twenty thousand, sixteen".