31424430124 has 6 divisors (see below), whose sum is σ = 54992752724. Its totient is φ = 15712215060.

The previous prime is 31424430119. The next prime is 31424430127. The reversal of 31424430124 is 42103442413.

It is a junction number, because it is equal to n+sod(n) for n = 31424430092 and 31424430101.

It is not an unprimeable number, because it can be changed into a prime (31424430127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3928053762 + ... + 3928053769.

Almost surely, 2^31424430124 is an apocalyptic number.

It is an amenable number.

31424430124 is a deficient number, since it is larger than the sum of its proper divisors (23568322600).

31424430124 is a wasteful number, since it uses less digits than its factorization.

31424430124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7856107535 (or 7856107533 counting only the distinct ones).

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

Adding to 31424430124 its reverse (42103442413), we get a palindrome (73527872537).

The spelling of 31424430124 in words is "thirty-one billion, four hundred twenty-four million, four hundred thirty thousand, one hundred twenty-four".