31424242404 has 12 divisors (see below), whose sum is σ = 73323232304. Its totient is φ = 10474747464.

The previous prime is 31424242397. The next prime is 31424242457. The reversal of 31424242404 is 40424242413.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309343422 + ... + 1309343445.

Almost surely, 2^31424242404 is an apocalyptic number.

It is an amenable number.

31424242404 is an abundant number, since it is smaller than the sum of its proper divisors (41898989900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31424242404 is a wasteful number, since it uses less digits than its factorization.

31424242404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618686874 (or 2618686872 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 31424242404 its reverse (40424242413), we get a palindrome (71848484817).

Subtracting 31424242404 from its reverse (40424242413), we obtain a palindrome (9000000009).

The spelling of 31424242404 in words is "thirty-one billion, four hundred twenty-four million, two hundred forty-two thousand, four hundred four".