31305143404 has 6 divisors (see below), whose sum is σ = 54784000964. Its totient is φ = 15652571700.

The previous prime is 31305143381. The next prime is 31305143431. The reversal of 31305143404 is 40434150313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3913142922 + ... + 3913142929.

Almost surely, 2^31305143404 is an apocalyptic number.

It is an amenable number.

31305143404 is a deficient number, since it is larger than the sum of its proper divisors (23478857560).

31305143404 is a wasteful number, since it uses less digits than its factorization.

31305143404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7826285855 (or 7826285853 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 31305143404 its reverse (40434150313), we get a palindrome (71739293717).

The spelling of 31305143404 in words is "thirty-one billion, three hundred five million, one hundred forty-three thousand, four hundred four".