431021120133 has 4 divisors (see below), whose sum is σ = 574694826848. Its totient is φ = 287347413420.

The previous prime is 431021120119. The next prime is 431021120137. The reversal of 431021120133 is 331021120134.

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 431021120133 - 2⁹ = 431021119621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431021120137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71836853353 + ... + 71836853358.

It is an arithmetic number, because the mean of its divisors is an integer number (143673706712).

Almost surely, 2^431021120133 is an apocalyptic number.

It is an amenable number.

431021120133 is a deficient number, since it is larger than the sum of its proper divisors (143673706715).

431021120133 is a wasteful number, since it uses less digits than its factorization.

431021120133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143673706714.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 431021120133 its reverse (331021120134), we get a palindrome (762042240267).

Subtracting from 431021120133 its reverse (331021120134), we obtain a palindrome (99999999999).

The spelling of 431021120133 in words is "four hundred thirty-one billion, twenty-one million, one hundred twenty thousand, one hundred thirty-three".