2103111012 has 12 divisors (see below), whose sum is σ = 4907259056. Its totient is φ = 701037000.

The previous prime is 2103110941. The next prime is 2103111013. The reversal of 2103111012 is 2101113012.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 175259251 = 2103111012 / (2 + 1 + 0 + 3 + 1 + 1 + 1 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (2103111013) by changing a digit.

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, 87629614 + ... + 87629637.

Almost surely, 2^2103111012 is an apocalyptic number.

It is an amenable number.

2103111012 is an abundant number, since it is smaller than the sum of its proper divisors (2804148044).

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

2103111012 is a wasteful number, since it uses less digits than its factorization.

2103111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175259258 (or 175259256 counting only the distinct ones).

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

The square root of 2103111012 is about 45859.6883111955. The cubic root of 2103111012 is about 1281.2112176022.

Adding to 2103111012 its reverse (2101113012), we get a palindrome (4204224024).

The spelling of 2103111012 in words is "two billion, one hundred three million, one hundred eleven thousand, twelve".