31424032144 has 40 divisors (see below), whose sum is σ = 61130908800. Its totient is φ = 15648403200.

The previous prime is 31424032127. The next prime is 31424032153. The reversal of 31424032144 is 44123042413.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9109332 + ... + 9112780.

It is an arithmetic number, because the mean of its divisors is an integer number (1528272720).

Almost surely, 2^31424032144 is an apocalyptic number.

It is an amenable number.

31424032144 is a deficient number, since it is larger than the sum of its proper divisors (29706876656).

31424032144 is a wasteful number, since it uses less digits than its factorization.

31424032144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5599 (or 5593 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31424032144 its reverse (44123042413), we get a palindrome (75547074557).

The spelling of 31424032144 in words is "thirty-one billion, four hundred twenty-four million, thirty-two thousand, one hundred forty-four".