631432103 has 16 divisors (see below), whose sum is σ = 658536480. Its totient is φ = 604992000.

The previous prime is 631432091. The next prime is 631432129. The reversal of 631432103 is 301234136.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-631432103 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 (631432163) 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, 575051 + ... + 576147.

It is an arithmetic number, because the mean of its divisors is an integer number (41158530).

Almost surely, 2^631432103 is an apocalyptic number.

631432103 is a deficient number, since it is larger than the sum of its proper divisors (27104377).

631432103 is a wasteful number, since it uses less digits than its factorization.

631432103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 631432103 is about 25128.3127766271. The cubic root of 631432103 is about 857.9109666672.

Adding to 631432103 its reverse (301234136), we get a palindrome (932666239).

The spelling of 631432103 in words is "six hundred thirty-one million, four hundred thirty-two thousand, one hundred three".