631340103 has 4 divisors (see below), whose sum is σ = 841786808. Its totient is φ = 420893400.

The previous prime is 631340071. The next prime is 631340107. The reversal of 631340103 is 301043136.

631340103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 631340103 - 2⁵ = 631340071 is a prime.

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 631340103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631340107) 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, 105223348 + ... + 105223353.

It is an arithmetic number, because the mean of its divisors is an integer number (210446702).

Almost surely, 2^631340103 is an apocalyptic number.

631340103 is a deficient number, since it is larger than the sum of its proper divisors (210446705).

631340103 is a wasteful number, since it uses less digits than its factorization.

631340103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210446704.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 631340103 is about 25126.4821055396. The cubic root of 631340103 is about 857.8692986123.

Adding to 631340103 its reverse (301043136), we get a palindrome (932383239).

The spelling of 631340103 in words is "six hundred thirty-one million, three hundred forty thousand, one hundred three".