2131112031 has 16 divisors (see below), whose sum is σ = 2882880000. Its totient is φ = 1400148288.

The previous prime is 2131112021. The next prime is 2131112047. The reversal of 2131112031 is 1302111312.

It is a happy number.

It is not a de Polignac number, because 2131112031 - 2¹¹ = 2131109983 is a prime.

It is a super-2 number, since 2×2131112031² = 9083276977345889922, 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 2131112031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131112021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68970 + ... + 94968.

It is an arithmetic number, because the mean of its divisors is an integer number (180180000).

Almost surely, 2^2131112031 is an apocalyptic number.

2131112031 is a deficient number, since it is larger than the sum of its proper divisors (751767969).

2131112031 is a wasteful number, since it uses less digits than its factorization.

2131112031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26398.

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

The square root of 2131112031 is about 46163.9689693163. The cubic root of 2131112031 is about 1286.8722235130.

Adding to 2131112031 its reverse (1302111312), we get a palindrome (3433223343).

The spelling of 2131112031 in words is "two billion, one hundred thirty-one million, one hundred twelve thousand, thirty-one".