31424420024 has 16 divisors (see below), whose sum is σ = 58923931200. Its totient is φ = 15711371712.

The previous prime is 31424420003. The next prime is 31424420057. The reversal of 31424420024 is 42002442413.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31424419975 and 31424420002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72089 + ... + 260855.

It is an arithmetic number, because the mean of its divisors is an integer number (3682745700).

Almost surely, 2^31424420024 is an apocalyptic number.

It is an amenable number.

31424420024 is a deficient number, since it is larger than the sum of its proper divisors (27499511176).

31424420024 is a wasteful number, since it uses less digits than its factorization.

31424420024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209582 (or 209578 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 31424420024 its reverse (42002442413), we get a palindrome (73426862437).

The spelling of 31424420024 in words is "thirty-one billion, four hundred twenty-four million, four hundred twenty thousand, twenty-four".