31424404443 has 8 divisors (see below), whose sum is σ = 44363865168. Its totient is φ = 19717273344.

The previous prime is 31424404393. The next prime is 31424404463. The reversal of 31424404443 is 34440442413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31424404443 - 2⁹ = 31424403931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31424404463) 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 7 ways as a sum of consecutive naturals, for example, 308082346 + ... + 308082447.

It is an arithmetic number, because the mean of its divisors is an integer number (5545483146).

Almost surely, 2^31424404443 is an apocalyptic number.

31424404443 is a deficient number, since it is larger than the sum of its proper divisors (12939460725).

31424404443 is a wasteful number, since it uses less digits than its factorization.

31424404443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616164813.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 31424404443 its reverse (34440442413), we get a palindrome (65864846856).

The spelling of 31424404443 in words is "thirty-one billion, four hundred twenty-four million, four hundred four thousand, four hundred forty-three".