103131208 has 16 divisors (see below), whose sum is σ = 194454000. Its totient is φ = 51276816.

The previous prime is 103131181. The next prime is 103131209. The reversal of 103131208 is 802131301.

It is not an unprimeable number, because it can be changed into a prime (103131209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34578 + ... + 37441.

It is an arithmetic number, because the mean of its divisors is an integer number (12153375).

Almost surely, 2^103131208 is an apocalyptic number.

It is an amenable number.

103131208 is a deficient number, since it is larger than the sum of its proper divisors (91322792).

103131208 is a wasteful number, since it uses less digits than its factorization.

103131208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72204 (or 72200 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 103131208 is about 10155.3536619854. The cubic root of 103131208 is about 468.9537736137.

Adding to 103131208 its reverse (802131301), we get a palindrome (905262509).

The spelling of 103131208 in words is "one hundred three million, one hundred thirty-one thousand, two hundred eight".