31232103 has 16 divisors (see below), whose sum is σ = 47959296. Its totient is φ = 17709120.

The previous prime is 31232087. The next prime is 31232141. The reversal of 31232103 is 30123213.

It is not a de Polignac number, because 31232103 - 2⁴ = 31232087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2926 + ... + 8427.

It is an arithmetic number, because the mean of its divisors is an integer number (2997456).

Almost surely, 2^31232103 is an apocalyptic number.

31232103 is a deficient number, since it is larger than the sum of its proper divisors (16727193).

31232103 is a wasteful number, since it uses less digits than its factorization.

31232103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11494.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 31232103 is about 5588.5689581502. The cubic root of 31232103 is about 314.9201208391.

Adding to 31232103 its reverse (30123213), we get a palindrome (61355316).

It can be divided in two parts, 3123210 and 3, that added together give a palindrome (3123213).

The spelling of 31232103 in words is "thirty-one million, two hundred thirty-two thousand, one hundred three".