2131331112 has 24 divisors (see below), whose sum is σ = 5772355290. Its totient is φ = 710443680.

The previous prime is 2131331107. The next prime is 2131331143. The reversal of 2131331112 is 2111331312.

It can be written as a sum of positive squares in only one way, i.e., 2095259076 + 36072036 = 45774^2 + 6006^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14800839 + ... + 14800982.

Almost surely, 2^2131331112 is an apocalyptic number.

It is an amenable number.

2131331112 is an abundant number, since it is smaller than the sum of its proper divisors (3641024178).

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

2131331112 is a wasteful number, since it uses less digits than its factorization.

2131331112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29601833 (or 29601826 counting only the distinct ones).

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

The square root of 2131331112 is about 46166.3417654031. The cubic root of 2131331112 is about 1286.9163193636.

Adding to 2131331112 its reverse (2111331312), we get a palindrome (4242662424).

It can be divided in two parts, 21313 and 31112, that added together give a palindrome (52425).

The spelling of 2131331112 in words is "two billion, one hundred thirty-one million, three hundred thirty-one thousand, one hundred twelve".