31031342424 has 24 divisors (see below), whose sum is σ = 84043219260. Its totient is φ = 10343780784.

The previous prime is 31031342401. The next prime is 31031342449. The reversal of 31031342424 is 42424313013.

31031342424 is a `hidden beast` number, since 3 + 103 + 134 + 2 + 424 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

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 in 5 ways as a sum of consecutive naturals, for example, 215495362 + ... + 215495505.

Almost surely, 2^31031342424 is an apocalyptic number.

It is an amenable number.

31031342424 is an abundant number, since it is smaller than the sum of its proper divisors (53011876836).

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

31031342424 is a wasteful number, since it uses less digits than its factorization.

31031342424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430990879 (or 430990872 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 31031342424 its reverse (42424313013), we get a palindrome (73455655437).

The spelling of 31031342424 in words is "thirty-one billion, thirty-one million, three hundred forty-two thousand, four hundred twenty-four".