31104433 has 4 divisors (see below), whose sum is σ = 31498240. Its totient is φ = 30710628.

The previous prime is 31104431. The next prime is 31104473. The reversal of 31104433 is 33440113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31104433 - 2¹ = 31104431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31104433.

It is not an unprimeable number, because it can be changed into a prime (31104431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196785 + ... + 196942.

It is an arithmetic number, because the mean of its divisors is an integer number (7874560).

Almost surely, 2^31104433 is an apocalyptic number.

It is an amenable number.

31104433 is a deficient number, since it is larger than the sum of its proper divisors (393807).

31104433 is an equidigital number, since it uses as much as digits as its factorization.

31104433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393806.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 31104433 is about 5577.1348378894. The cubic root of 31104433 is about 314.4904266360.

Adding to 31104433 its reverse (33440113), we get a palindrome (64544546).

The spelling of 31104433 in words is "thirty-one million, one hundred four thousand, four hundred thirty-three".