31434432403 has 16 divisors (see below), whose sum is σ = 36351745920. Its totient is φ = 26864323200.

The previous prime is 31434432319. The next prime is 31434432433. The reversal of 31434432403 is 30423443413.

It is not a de Polignac number, because 31434432403 - 2⁹ = 31434431891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31434432433) 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, 62788 + ... + 258478.

It is an arithmetic number, because the mean of its divisors is an integer number (2271984120).

Almost surely, 2^31434432403 is an apocalyptic number.

31434432403 is a deficient number, since it is larger than the sum of its proper divisors (4917313517).

31434432403 is a wasteful number, since it uses less digits than its factorization.

31434432403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196578.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 31434432403 its reverse (30423443413), we get a palindrome (61857875816).

The spelling of 31434432403 in words is "thirty-one billion, four hundred thirty-four million, four hundred thirty-two thousand, four hundred three".