2331131112 has 48 divisors (see below), whose sum is σ = 6323899140. Its totient is φ = 775761408.

The previous prime is 2331131107. The next prime is 2331131113. The reversal of 2331131112 is 2111311332.

2331131112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1253584836 + 1077546276 = 35406^2 + 32826^2 .

It is a super-2 number, since 2×2331131112² = 10868344522668713088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2331131113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17728 + ... + 70544.

Almost surely, 2^2331131112 is an apocalyptic number.

It is an amenable number.

2331131112 is an abundant number, since it is smaller than the sum of its proper divisors (3992768028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2331131112 is a wasteful number, since it uses less digits than its factorization.

2331131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53442 (or 53435 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 2331131112 is about 48281.7886164131. The cubic root of 2331131112 is about 1325.9349967793.

Adding to 2331131112 its reverse (2111311332), we get a palindrome (4442442444).

The spelling of 2331131112 in words is "two billion, three hundred thirty-one million, one hundred thirty-one thousand, one hundred twelve".