431101223 has 4 divisors (see below), whose sum is σ = 492687120. Its totient is φ = 369515328.

The previous prime is 431101199. The next prime is 431101261. The reversal of 431101223 is 322101134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322101134 = 2 ⋅161050567.

It is not a de Polignac number, because 431101223 - 2¹⁴ = 431084839 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 (431101123) 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, 30792938 + ... + 30792951.

It is an arithmetic number, because the mean of its divisors is an integer number (123171780).

Almost surely, 2^431101223 is an apocalyptic number.

431101223 is a deficient number, since it is larger than the sum of its proper divisors (61585897).

431101223 is an equidigital number, since it uses as much as digits as its factorization.

431101223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61585896.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 431101223 is about 20762.9772190792. The cubic root of 431101223 is about 755.4280122136.

Adding to 431101223 its reverse (322101134), we get a palindrome (753202357).

The spelling of 431101223 in words is "four hundred thirty-one million, one hundred one thousand, two hundred twenty-three".