102003120 has 60 divisors (see below), whose sum is σ = 342562896. Its totient is φ = 27200640.

The previous prime is 102003071. The next prime is 102003127. The reversal of 102003120 is 21300201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (102003127) 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 in 11 ways as a sum of consecutive naturals, for example, 70116 + ... + 71555.

Almost surely, 2^102003120 is an apocalyptic number.

102003120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102003120 is an abundant number, since it is smaller than the sum of its proper divisors (240559776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102003120 is a wasteful number, since it uses less digits than its factorization.

102003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141690 (or 141681 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 102003120 is about 10099.6594001976. The cubic root of 102003120 is about 467.2376367300.

Adding to 102003120 its reverse (21300201), we get a palindrome (123303321).

The spelling of 102003120 in words is "one hundred two million, three thousand, one hundred twenty".