2103112131 has 8 divisors (see below), whose sum is σ = 2805155520. Its totient is φ = 1401571752.

The previous prime is 2103112129. The next prime is 2103112169. The reversal of 2103112131 is 1312113012.

It is a happy number.

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

It is not a de Polignac number, because 2103112131 - 2¹ = 2103112129 is a prime.

It is a super-2 number, since 2×2103112131² = 8846161271118722322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2103112131.

It is not an unprimeable number, because it can be changed into a prime (2103114131) 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 7 ways as a sum of consecutive naturals, for example, 115885 + ... + 132798.

It is an arithmetic number, because the mean of its divisors is an integer number (350644440).

Almost surely, 2^2103112131 is an apocalyptic number.

2103112131 is a deficient number, since it is larger than the sum of its proper divisors (702043389).

2103112131 is a wasteful number, since it uses less digits than its factorization.

2103112131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251505.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2103112131 is about 45859.7005114512. The cubic root of 2103112131 is about 1281.2114448331.

Adding to 2103112131 its reverse (1312113012), we get a palindrome (3415225143).

The spelling of 2103112131 in words is "two billion, one hundred three million, one hundred twelve thousand, one hundred thirty-one".