4122121423 has 12 divisors (see below), whose sum is σ = 4832884992. Its totient is φ = 3505420800.

The previous prime is 4122121411. The next prime is 4122121447. The reversal of 4122121423 is 3241212214.

It is not a de Polignac number, because 4122121423 - 2⁵ = 4122121391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4122121394 and 4122121403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4122121483) 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 11 ways as a sum of consecutive naturals, for example, 324978 + ... + 337423.

It is an arithmetic number, because the mean of its divisors is an integer number (402740416).

Almost surely, 2^4122121423 is an apocalyptic number.

4122121423 is a deficient number, since it is larger than the sum of its proper divisors (710763569).

4122121423 is a wasteful number, since it uses less digits than its factorization.

4122121423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662542 (or 662535 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 4122121423 is about 64203.7492908319. The cubic root of 4122121423 is about 1603.3940222455.

Adding to 4122121423 its reverse (3241212214), we get a palindrome (7363333637).

The spelling of 4122121423 in words is "four billion, one hundred twenty-two million, one hundred twenty-one thousand, four hundred twenty-three".