2312111131 has 8 divisors (see below), whose sum is σ = 2522714544. Its totient is φ = 2101576320.

The previous prime is 2312111117. The next prime is 2312111141. The reversal of 2312111131 is 1311112132.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2312111131 is a prime.

It is a super-2 number, since 2×2312111131² = 10691715764188198322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312111141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74775 + ... + 101071.

It is an arithmetic number, because the mean of its divisors is an integer number (315339318).

Almost surely, 2^2312111131 is an apocalyptic number.

2312111131 is a deficient number, since it is larger than the sum of its proper divisors (210603413).

2312111131 is a wasteful number, since it uses less digits than its factorization.

2312111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34301.

The product of its digits is 36, while the sum is 16.

The square root of 2312111131 is about 48084.4167168533. The cubic root of 2312111131 is about 1322.3189896666.

Adding to 2312111131 its reverse (1311112132), we get a palindrome (3623223263).

The spelling of 2312111131 in words is "two billion, three hundred twelve million, one hundred eleven thousand, one hundred thirty-one".