431021041 has 4 divisors (see below), whose sum is σ = 470204784. Its totient is φ = 391837300.

The previous prime is 431021039. The next prime is 431021051. The reversal of 431021041 is 140120134.

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 431021041 - 2¹ = 431021039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431021051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19591855 + ... + 19591876.

It is an arithmetic number, because the mean of its divisors is an integer number (117551196).

Almost surely, 2^431021041 is an apocalyptic number.

It is an amenable number.

431021041 is a deficient number, since it is larger than the sum of its proper divisors (39183743).

431021041 is a wasteful number, since it uses less digits than its factorization.

431021041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39183742.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 431021041 is about 20761.0462404957. The cubic root of 431021041 is about 755.3811744244.

Adding to 431021041 its reverse (140120134), we get a palindrome (571141175).

The spelling of 431021041 in words is "four hundred thirty-one million, twenty-one thousand, forty-one".