4312421121 has 4 divisors (see below), whose sum is σ = 5749894832. Its totient is φ = 2874947412.

The previous prime is 4312421119. The next prime is 4312421159. The reversal of 4312421121 is 1211242134.

4312421121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4312421121 - 2¹ = 4312421119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4312421101) 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, 718736851 + ... + 718736856.

It is an arithmetic number, because the mean of its divisors is an integer number (1437473708).

Almost surely, 2^4312421121 is an apocalyptic number.

It is an amenable number.

4312421121 is a deficient number, since it is larger than the sum of its proper divisors (1437473711).

4312421121 is a wasteful number, since it uses less digits than its factorization.

4312421121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437473710.

The product of its digits is 384, while the sum is 21.

The square root of 4312421121 is about 65669.0271056302. The cubic root of 4312421121 is about 1627.6975938063.

Adding to 4312421121 its reverse (1211242134), we get a palindrome (5523663255).

The spelling of 4312421121 in words is "four billion, three hundred twelve million, four hundred twenty-one thousand, one hundred twenty-one".