2131240012 has 12 divisors (see below), whose sum is σ = 4068731016. Its totient is φ = 968745440.

The previous prime is 2131240009. The next prime is 2131240031. The reversal of 2131240012 is 2100421312.

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 3 ways as a sum of consecutive naturals, for example, 24218593 + ... + 24218680.

It is an arithmetic number, because the mean of its divisors is an integer number (339060918).

Almost surely, 2^2131240012 is an apocalyptic number.

2131240012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2131240012 is a deficient number, since it is larger than the sum of its proper divisors (1937491004).

2131240012 is a wasteful number, since it uses less digits than its factorization.

2131240012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48437288 (or 48437286 counting only the distinct ones).

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

The square root of 2131240012 is about 46165.3551053168. The cubic root of 2131240012 is about 1286.8979834441.

Adding to 2131240012 its reverse (2100421312), we get a palindrome (4231661324).

The spelling of 2131240012 in words is "two billion, one hundred thirty-one million, two hundred forty thousand, twelve".