103200012 has 18 divisors (see below), whose sum is σ = 260866788. Its totient is φ = 34399992.

The previous prime is 103199981. The next prime is 103200017. The reversal of 103200012 is 210002301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a junction number, because it is equal to n+sod(n) for n = 103199967 and 103200003.

It is not an unprimeable number, because it can be changed into a prime (103200017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1433298 + ... + 1433369.

Almost surely, 2^103200012 is an apocalyptic number.

103200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103200012 is an abundant number, since it is smaller than the sum of its proper divisors (157666776).

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

103200012 is a wasteful number, since it uses less digits than its factorization.

103200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866677 (or 2866672 counting only the distinct ones).

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

The square root of 103200012 is about 10158.7406699846. The cubic root of 103200012 is about 469.0580379559.

Adding to 103200012 its reverse (210002301), we get a palindrome (313202313).

The spelling of 103200012 in words is "one hundred three million, two hundred thousand, twelve".