2111312012 has 12 divisors (see below), whose sum is σ = 3704445696. Its totient is φ = 1052898960.

The previous prime is 2111312011. The next prime is 2111312033. The reversal of 2111312012 is 2102131112.

It is not an unprimeable number, because it can be changed into a prime (2111312011) 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, 687539 + ... + 690602.

It is an arithmetic number, because the mean of its divisors is an integer number (308703808).

Almost surely, 2^2111312012 is an apocalyptic number.

It is an amenable number.

2111312012 is a deficient number, since it is larger than the sum of its proper divisors (1593133684).

2111312012 is a wasteful number, since it uses less digits than its factorization.

2111312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378528 (or 1378526 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2111312012 is about 45949.0153539768. The cubic root of 2111312012 is about 1282.8744021505.

Adding to 2111312012 its reverse (2102131112), we get a palindrome (4213443124).

Subtracting from 2111312012 its reverse (2102131112), we obtain a square (9180900 = 3030²).

The spelling of 2111312012 in words is "two billion, one hundred eleven million, three hundred twelve thousand, twelve".