431121000443 has 16 divisors (see below), whose sum is σ = 503487269376. Its totient is φ = 361535572800.

The previous prime is 431121000439. The next prime is 431121000451. The reversal of 431121000443 is 344000121134.

It is a cyclic number.

It is not a de Polignac number, because 431121000443 - 2² = 431121000439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431121002443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3542258 + ... + 3661943.

It is an arithmetic number, because the mean of its divisors is an integer number (31467954336).

Almost surely, 2^431121000443 is an apocalyptic number.

431121000443 is a deficient number, since it is larger than the sum of its proper divisors (72366268933).

431121000443 is a wasteful number, since it uses less digits than its factorization.

431121000443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204394.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 431121000443 its reverse (344000121134), we get a palindrome (775121121577).

The spelling of 431121000443 in words is "four hundred thirty-one billion, one hundred twenty-one million, four hundred forty-three", and thus it is an aban number.