4243121412 has 12 divisors (see below), whose sum is σ = 9900616656. Its totient is φ = 1414373800.

The previous prime is 4243121381. The next prime is 4243121417. The reversal of 4243121412 is 2141213424.

4243121412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (4243121417) 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, 176796714 + ... + 176796737.

It is an arithmetic number, because the mean of its divisors is an integer number (825051388).

Almost surely, 2^4243121412 is an apocalyptic number.

It is an amenable number.

4243121412 is an abundant number, since it is smaller than the sum of its proper divisors (5657495244).

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

4243121412 is a wasteful number, since it uses less digits than its factorization.

4243121412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353593458 (or 353593456 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 4243121412 is about 65139.2463266194. The cubic root of 4243121412 is about 1618.9315481755.

Adding to 4243121412 its reverse (2141213424), we get a palindrome (6384334836).

The spelling of 4243121412 in words is "four billion, two hundred forty-three million, one hundred twenty-one thousand, four hundred twelve".