31242141424 has 20 divisors (see below), whose sum is σ = 65187930136. Its totient is φ = 14419449792.

The previous prime is 31242141421. The next prime is 31242141457. The reversal of 31242141424 is 42414124213.

It is a junction number, because it is equal to n+sod(n) for n = 31242141392 and 31242141401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31242141421) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 75101094 + ... + 75101509.

Almost surely, 2^31242141424 is an apocalyptic number.

It is an amenable number.

31242141424 is an abundant number, since it is smaller than the sum of its proper divisors (33945788712).

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

31242141424 is a wasteful number, since it uses less digits than its factorization.

31242141424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150202624 (or 150202618 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

Adding to 31242141424 its reverse (42414124213), we get a palindrome (73656265637).

The spelling of 31242141424 in words is "thirty-one billion, two hundred forty-two million, one hundred forty-one thousand, four hundred twenty-four".