31424243433 has 8 divisors (see below), whose sum is σ = 45707990496. Its totient is φ = 19044996000.

The previous prime is 31424243413. The next prime is 31424243471. The reversal of 31424243433 is 33434242413.

It is a happy number.

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

It is not a de Polignac number, because 31424243433 - 2⁶ = 31424243369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 952249801 = 31424243433 / (3 + 1 + 4 + 2 + 4 + 2 + 4 + 3 + 4 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 31424243394 and 31424243403.

It is not an unprimeable number, because it can be changed into a prime (31424243413) 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, 476124868 + ... + 476124933.

It is an arithmetic number, because the mean of its divisors is an integer number (5713498812).

Almost surely, 2^31424243433 is an apocalyptic number.

31424243433 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31424243433 is a deficient number, since it is larger than the sum of its proper divisors (14283747063).

31424243433 is a wasteful number, since it uses less digits than its factorization.

31424243433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952249815.

The product of its digits is 82944, while the sum is 33.

Adding to 31424243433 its reverse (33434242413), we get a palindrome (64858485846).

The spelling of 31424243433 in words is "thirty-one billion, four hundred twenty-four million, two hundred forty-three thousand, four hundred thirty-three".