102004120 has 32 divisors (see below), whose sum is σ = 230202000. Its totient is φ = 40678528.

The previous prime is 102004117. The next prime is 102004121. The reversal of 102004120 is 21400201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 102004097 and 102004106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102004121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10206 + ... + 17554.

Almost surely, 2^102004120 is an apocalyptic number.

102004120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102004120 is an abundant number, since it is smaller than the sum of its proper divisors (128197880).

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

102004120 is a wasteful number, since it uses less digits than its factorization.

102004120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7707 (or 7703 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 102004120 is about 10099.7089066963. The cubic root of 102004120 is about 467.2391635987.

Adding to 102004120 its reverse (21400201), we get a palindrome (123404321).

The spelling of 102004120 in words is "one hundred two million, four thousand, one hundred twenty".