2421123433 has 4 divisors (see below), whose sum is σ = 2433668308. Its totient is φ = 2408578560.

The previous prime is 2421123421. The next prime is 2421123437. The reversal of 2421123433 is 3343211242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1379899609 + 1041223824 = 37147^2 + 32268^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421123433 - 2¹³ = 2421115241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2421123398 and 2421123407.

It is not an unprimeable number, because it can be changed into a prime (2421123437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6272148 + ... + 6272533.

It is an arithmetic number, because the mean of its divisors is an integer number (608417077).

Almost surely, 2^2421123433 is an apocalyptic number.

It is an amenable number.

2421123433 is a deficient number, since it is larger than the sum of its proper divisors (12544875).

2421123433 is a wasteful number, since it uses less digits than its factorization.

2421123433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12544874.

The product of its digits is 3456, while the sum is 25.

The square root of 2421123433 is about 49204.9126917222. The cubic root of 2421123433 is about 1342.7824105941.

Adding to 2421123433 its reverse (3343211242), we get a palindrome (5764334675).

The spelling of 2421123433 in words is "two billion, four hundred twenty-one million, one hundred twenty-three thousand, four hundred thirty-three".