2123343012 has 24 divisors (see below), whose sum is σ = 5662248256. Its totient is φ = 606669408.

The previous prime is 2123342981. The next prime is 2123343091. The reversal of 2123343012 is 2103433212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2123343012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12638863 + ... + 12639030.

Almost surely, 2^2123343012 is an apocalyptic number.

It is an amenable number.

2123343012 is an abundant number, since it is smaller than the sum of its proper divisors (3538905244).

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

2123343012 is a wasteful number, since it uses less digits than its factorization.

2123343012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25277907 (or 25277905 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2123343012 is about 46079.7462232595. The cubic root of 2123343012 is about 1285.3065450837.

Adding to 2123343012 its reverse (2103433212), we get a palindrome (4226776224).

The spelling of 2123343012 in words is "two billion, one hundred twenty-three million, three hundred forty-three thousand, twelve".