31431404103 has 8 divisors (see below), whose sum is σ = 45718406016. Its totient is φ = 19049335800.

The previous prime is 31431404099. The next prime is 31431404171. The reversal of 31431404103 is 30140413413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31431404103 - 2² = 31431404099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431404203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476233363 + ... + 476233428.

It is an arithmetic number, because the mean of its divisors is an integer number (5714800752).

Almost surely, 2^31431404103 is an apocalyptic number.

31431404103 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31431404103 is a deficient number, since it is larger than the sum of its proper divisors (14287001913).

31431404103 is a wasteful number, since it uses less digits than its factorization.

31431404103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952466805.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31431404103 its reverse (30140413413), we get a palindrome (61571817516).

It can be divided in two parts, 31431 and 404103, that added together give a palindrome (435534).

The spelling of 31431404103 in words is "thirty-one billion, four hundred thirty-one million, four hundred four thousand, one hundred three".