2123103012 has 12 divisors (see below), whose sum is σ = 4953907056. Its totient is φ = 707701000.

The previous prime is 2123103011. The next prime is 2123103061. The reversal of 2123103012 is 2103013212.

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

It is a junction number, because it is equal to n+sod(n) for n = 2123102982 and 2123103000.

It is not an unprimeable number, because it can be changed into a prime (2123103011) 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, 88462614 + ... + 88462637.

It is an arithmetic number, because the mean of its divisors is an integer number (412825588).

Almost surely, 2^2123103012 is an apocalyptic number.

It is an amenable number.

2123103012 is an abundant number, since it is smaller than the sum of its proper divisors (2830804044).

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

2123103012 is a wasteful number, since it uses less digits than its factorization.

2123103012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176925258 (or 176925256 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2123103012 is about 46077.1419686595. The cubic root of 2123103012 is about 1285.2581174875.

Adding to 2123103012 its reverse (2103013212), we get a palindrome (4226116224).

The spelling of 2123103012 in words is "two billion, one hundred twenty-three million, one hundred three thousand, twelve".