2131320103 has 16 divisors (see below), whose sum is σ = 2362348800. Its totient is φ = 1906609600.

The previous prime is 2131320077. The next prime is 2131320119. The reversal of 2131320103 is 3010231312.

It is a cyclic number.

It is not a de Polignac number, because 2131320103 - 2¹³ = 2131311911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131320133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456123 + ... + 460771.

It is an arithmetic number, because the mean of its divisors is an integer number (147646800).

Almost surely, 2^2131320103 is an apocalyptic number.

2131320103 is a deficient number, since it is larger than the sum of its proper divisors (231028697).

2131320103 is a wasteful number, since it uses less digits than its factorization.

2131320103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2131320103 is about 46166.2225333631. Note that the first 3 decimals coincide. The cubic root of 2131320103 is about 1286.9141035831.

Adding to 2131320103 its reverse (3010231312), we get a palindrome (5141551415).

The spelling of 2131320103 in words is "two billion, one hundred thirty-one million, three hundred twenty thousand, one hundred three".