2112130331 has 4 divisors (see below), whose sum is σ = 2112297600. Its totient is φ = 2111963064.

The previous prime is 2112130327. The next prime is 2112130343. The reversal of 2112130331 is 1330312112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2112130331 - 2² = 2112130327 is a prime.

It is a super-2 number, since 2×2112130331² = 8922189070260339122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112130301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62996 + ... + 90513.

It is an arithmetic number, because the mean of its divisors is an integer number (528074400).

Almost surely, 2^2112130331 is an apocalyptic number.

2112130331 is a deficient number, since it is larger than the sum of its proper divisors (167269).

2112130331 is a wasteful number, since it uses less digits than its factorization.

2112130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167268.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2112130331 is about 45957.9191326152. The cubic root of 2112130331 is about 1283.0401229426.

Adding to 2112130331 its reverse (1330312112), we get a palindrome (3442442443).

The spelling of 2112130331 in words is "two billion, one hundred twelve million, one hundred thirty thousand, three hundred thirty-one".