2123433426 has 16 divisors (see below), whose sum is σ = 4470386400. Its totient is φ = 670557888.

The previous prime is 2123433421. The next prime is 2123433427. The reversal of 2123433426 is 6243343212.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2123433393 and 2123433402.

It is not an unprimeable number, because it can be changed into a prime (2123433421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9313191 + ... + 9313418.

It is an arithmetic number, because the mean of its divisors is an integer number (279399150).

Almost surely, 2^2123433426 is an apocalyptic number.

2123433426 is an abundant number, since it is smaller than the sum of its proper divisors (2346952974).

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

2123433426 is a wasteful number, since it uses less digits than its factorization.

2123433426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18626633.

The product of its digits is 20736, while the sum is 30.

The square root of 2123433426 is about 46080.7272729066. The cubic root of 2123433426 is about 1285.3247880235.

Adding to 2123433426 its reverse (6243343212), we get a palindrome (8366776638).

The spelling of 2123433426 in words is "two billion, one hundred twenty-three million, four hundred thirty-three thousand, four hundred twenty-six".