4311343121 has 4 divisors (see below), whose sum is σ = 4312172544. Its totient is φ = 4310513700.

The previous prime is 4311343109. The next prime is 4311343129. The reversal of 4311343121 is 1213431134.

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 a cyclic number.

It is not a de Polignac number, because 4311343121 - 2¹⁰ = 4311342097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4311343129) 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, 406865 + ... + 417326.

It is an arithmetic number, because the mean of its divisors is an integer number (1078043136).

Almost surely, 2^4311343121 is an apocalyptic number.

It is an amenable number.

4311343121 is a deficient number, since it is larger than the sum of its proper divisors (829423).

4311343121 is an equidigital number, since it uses as much as digits as its factorization.

4311343121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829422.

The product of its digits is 864, while the sum is 23.

The square root of 4311343121 is about 65660.8187658363. The cubic root of 4311343121 is about 1627.5619542831.

Adding to 4311343121 its reverse (1213431134), we get a palindrome (5524774255).

The spelling of 4311343121 in words is "four billion, three hundred eleven million, three hundred forty-three thousand, one hundred twenty-one".