431513103 has 16 divisors (see below), whose sum is σ = 659290880. Its totient is φ = 245923776.

The previous prime is 431513101. The next prime is 431513167. The reversal of 431513103 is 301315134.

It is not a de Polignac number, because 431513103 - 2¹ = 431513101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431513103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431513101) 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, 19150 + ... + 35067.

It is an arithmetic number, because the mean of its divisors is an integer number (41205680).

Almost surely, 2^431513103 is an apocalyptic number.

431513103 is a deficient number, since it is larger than the sum of its proper divisors (227777777).

431513103 is a wasteful number, since it uses less digits than its factorization.

431513103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54606.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 431513103 is about 20772.8934672087. The cubic root of 431513103 is about 755.6685177180.

Adding to 431513103 its reverse (301315134), we get a palindrome (732828237).

The spelling of 431513103 in words is "four hundred thirty-one million, five hundred thirteen thousand, one hundred three".