31424217219 has 20 divisors (see below), whose sum is σ = 47001344544. Its totient is φ = 20923149744.

The previous prime is 31424217193. The next prime is 31424217247. The reversal of 31424217219 is 91271242413.

31424217219 is a `hidden beast` number, since 3 + 1 + 424 + 2 + 17 + 219 = 666.

It is not a de Polignac number, because 31424217219 - 2⁸ = 31424216963 is a prime.

It is a super-2 number, since 2×31424217219² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31424217289) 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 in 19 ways as a sum of consecutive naturals, for example, 178827 + ... + 307940.

Almost surely, 2^31424217219 is an apocalyptic number.

31424217219 is a deficient number, since it is larger than the sum of its proper divisors (15577127325).

31424217219 is an equidigital number, since it uses as much as digits as its factorization.

31424217219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487576 (or 487567 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The spelling of 31424217219 in words is "thirty-one billion, four hundred twenty-four million, two hundred seventeen thousand, two hundred nineteen".