31143344103 has 16 divisors (see below), whose sum is σ = 46142546400. Its totient is φ = 20760312960.

The previous prime is 31143344083. The next prime is 31143344147. The reversal of 31143344103 is 30144334113.

31143344103 is a `hidden beast` number, since 311 + 4 + 3 + 344 + 1 + 0 + 3 = 666.

It is not a de Polignac number, because 31143344103 - 2³⁰ = 30069602279 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31143344173) 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 15 ways as a sum of consecutive naturals, for example, 283393 + ... + 377621.

It is an arithmetic number, because the mean of its divisors is an integer number (2883909150).

Almost surely, 2^31143344103 is an apocalyptic number.

31143344103 is a deficient number, since it is larger than the sum of its proper divisors (14999202297).

31143344103 is a wasteful number, since it uses less digits than its factorization.

31143344103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106479 (or 106473 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 31143344103 its reverse (30144334113), we get a palindrome (61287678216).

The spelling of 31143344103 in words is "thirty-one billion, one hundred forty-three million, three hundred forty-four thousand, one hundred three".