2112031240 has 64 divisors (see below), whose sum is σ = 5351339520. Its totient is φ = 743232000.

The previous prime is 2112031223. The next prime is 2112031247. The reversal of 2112031240 is 421302112.

It is not an unprimeable number, because it can be changed into a prime (2112031247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63781 + ... + 91060.

It is an arithmetic number, because the mean of its divisors is an integer number (83614680).

Almost surely, 2^2112031240 is an apocalyptic number.

2112031240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112031240 is an abundant number, since it is smaller than the sum of its proper divisors (3239308280).

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

2112031240 is a wasteful number, since it uses less digits than its factorization.

2112031240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154894 (or 154890 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2112031240 is about 45956.8410576706. The cubic root of 2112031240 is about 1283.0200579376.

Adding to 2112031240 its reverse (421302112), we get a palindrome (2533333352).

The spelling of 2112031240 in words is "two billion, one hundred twelve million, thirty-one thousand, two hundred forty".