131103211 has 8 divisors (see below), whose sum is σ = 138585600. Its totient is φ = 123679080.

The previous prime is 131103149. The next prime is 131103239. The reversal of 131103211 is 112301131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131103211 - 2⁷ = 131103083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131103191 and 131103200.

It is not an unprimeable number, because it can be changed into a prime (131103311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9895 + ... + 18976.

It is an arithmetic number, because the mean of its divisors is an integer number (17323200).

Almost surely, 2^131103211 is an apocalyptic number.

131103211 is a deficient number, since it is larger than the sum of its proper divisors (7482389).

131103211 is a wasteful number, since it uses less digits than its factorization.

131103211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29129.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 131103211 is about 11450.0310479928. The cubic root of 131103211 is about 508.0086527449.

Adding to 131103211 its reverse (112301131), we get a palindrome (243404342).

The spelling of 131103211 in words is "one hundred thirty-one million, one hundred three thousand, two hundred eleven".