31421413024 has 24 divisors (see below), whose sum is σ = 62079514560. Its totient is φ = 15655187136.

The previous prime is 31421412973. The next prime is 31421413043. The reversal of 31421413024 is 42031412413.

It is a self number, because there is not a number n which added to its sum of digits gives 31421413024.

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, 1725784 + ... + 1743895.

It is an arithmetic number, because the mean of its divisors is an integer number (2586646440).

Almost surely, 2^31421413024 is an apocalyptic number.

It is an amenable number.

31421413024 is a deficient number, since it is larger than the sum of its proper divisors (30658101536).

31421413024 is a wasteful number, since it uses less digits than its factorization.

31421413024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469972 (or 3469964 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31421413024 its reverse (42031412413), we get a palindrome (73452825437).

The spelling of 31421413024 in words is "thirty-one billion, four hundred twenty-one million, four hundred thirteen thousand, twenty-four".