431011023 has 4 divisors (see below), whose sum is σ = 574681368. Its totient is φ = 287340680.

The previous prime is 431010997. The next prime is 431011027. The reversal of 431011023 is 320110134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 431011023 - 2¹⁷ = 430879951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431010993 and 431011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431011027) 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, 71835168 + ... + 71835173.

It is an arithmetic number, because the mean of its divisors is an integer number (143670342).

Almost surely, 2^431011023 is an apocalyptic number.

431011023 is a deficient number, since it is larger than the sum of its proper divisors (143670345).

431011023 is a wasteful number, since it uses less digits than its factorization.

431011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143670344.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 431011023 is about 20760.8049699428. The cubic root of 431011023 is about 755.3753220673.

Adding to 431011023 its reverse (320110134), we get a palindrome (751121157).

The spelling of 431011023 in words is "four hundred thirty-one million, eleven thousand, twenty-three".