31444434103 has 4 divisors (see below), whose sum is σ = 31444853328. Its totient is φ = 31444014880.

The previous prime is 31444434089. The next prime is 31444434139. The reversal of 31444434103 is 30143444413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31444434103 - 2¹³ = 31444425911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31444434143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62851 + ... + 258532.

It is an arithmetic number, because the mean of its divisors is an integer number (7861213332).

Almost surely, 2^31444434103 is an apocalyptic number.

31444434103 is a deficient number, since it is larger than the sum of its proper divisors (419225).

31444434103 is an equidigital number, since it uses as much as digits as its factorization.

31444434103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419224.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 31444434103 its reverse (30143444413), we get a palindrome (61587878516).

The spelling of 31444434103 in words is "thirty-one billion, four hundred forty-four million, four hundred thirty-four thousand, one hundred three".