31103132103 has 12 divisors (see below), whose sum is σ = 45371566968. Its totient is φ = 20530119600.

The previous prime is 31103132101. The next prime is 31103132147. The reversal of 31103132103 is 30123130113.

It is a happy number.

31103132103 is a `hidden beast` number, since 311 + 0 + 31 + 321 + 0 + 3 = 666.

It is not a de Polignac number, because 31103132103 - 2¹ = 31103132101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103132101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17107525 + ... + 17109342.

It is an arithmetic number, because the mean of its divisors is an integer number (3780963914).

Almost surely, 2^31103132103 is an apocalyptic number.

31103132103 is a deficient number, since it is larger than the sum of its proper divisors (14268434865).

31103132103 is a wasteful number, since it uses less digits than its factorization.

31103132103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34216974 (or 34216971 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31103132103 its reverse (30123130113), we get a palindrome (61226262216).

The spelling of 31103132103 in words is "thirty-one billion, one hundred three million, one hundred thirty-two thousand, one hundred three".