4431000231313 has 4 divisors (see below), whose sum is σ = 4431018937840. Its totient is φ = 4430981524788.

The previous prime is 4431000231277. The next prime is 4431000231389. The reversal of 4431000231313 is 3131320001344.

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 4431000231313 - 2²⁵ = 4430966676881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4431000631313) 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, 8993343 + ... + 9473236.

It is an arithmetic number, because the mean of its divisors is an integer number (1107754734460).

Almost surely, 2^{4431000231313} is an apocalyptic number.

It is an amenable number.

4431000231313 is a deficient number, since it is larger than the sum of its proper divisors (18706527).

4431000231313 is a wasteful number, since it uses less digits than its factorization.

4431000231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18706526.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 4431000231313 its reverse (3131320001344), we get a palindrome (7562320232657).

The spelling of 4431000231313 in words is "four trillion, four hundred thirty-one billion, two hundred thirty-one thousand, three hundred thirteen".