2113111012 has 12 divisors (see below), whose sum is σ = 3706487596. Its totient is φ = 1054114560.

The previous prime is 2113111009. The next prime is 2113111037. The reversal of 2113111012 is 2101113112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1346596416 + 766514596 = 36696^2 + 27686^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2113110983 and 2113111001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608289 + ... + 611752.

Almost surely, 2^2113111012 is an apocalyptic number.

It is an amenable number.

2113111012 is a deficient number, since it is larger than the sum of its proper divisors (1593376584).

2113111012 is a wasteful number, since it uses less digits than its factorization.

2113111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220478 (or 1220476 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 2113111012 is about 45968.5872308471. The cubic root of 2113111012 is about 1283.2386678846.

Adding to 2113111012 its reverse (2101113112), we get a palindrome (4214224124).

The spelling of 2113111012 in words is "two billion, one hundred thirteen million, one hundred eleven thousand, twelve".