103200111 has 12 divisors (see below), whose sum is σ = 170362192. Its totient is φ = 58971456.

The previous prime is 103200101. The next prime is 103200113. The reversal of 103200111 is 111002301.

It is not a de Polignac number, because 103200111 - 2⁵ = 103200079 is a prime.

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 = 103200093 and 103200102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103200113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 818986 + ... + 819111.

Almost surely, 2^103200111 is an apocalyptic number.

103200111 is a deficient number, since it is larger than the sum of its proper divisors (67162081).

103200111 is a wasteful number, since it uses less digits than its factorization.

103200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638110 (or 1638107 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 103200111 is about 10158.7455426347. The cubic root of 103200111 is about 469.0581879453.

Adding to 103200111 its reverse (111002301), we get a palindrome (214202412).

The spelling of 103200111 in words is "one hundred three million, two hundred thousand, one hundred eleven".