31320233103 has 4 divisors (see below), whose sum is σ = 41760310808. Its totient is φ = 20880155400.

The previous prime is 31320233089. The next prime is 31320233117. The reversal of 31320233103 is 30133202313.

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

It is an interprime number because it is at equal distance from previous prime (31320233089) and next prime (31320233117).

It is not a de Polignac number, because 31320233103 - 2⁸ = 31320232847 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 31320233103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31320233173) 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 3 ways as a sum of consecutive naturals, for example, 5220038848 + ... + 5220038853.

It is an arithmetic number, because the mean of its divisors is an integer number (10440077702).

Almost surely, 2^31320233103 is an apocalyptic number.

31320233103 is a deficient number, since it is larger than the sum of its proper divisors (10440077705).

31320233103 is a wasteful number, since it uses less digits than its factorization.

31320233103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10440077704.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31320233103 its reverse (30133202313), we get a palindrome (61453435416).

The spelling of 31320233103 in words is "thirty-one billion, three hundred twenty million, two hundred thirty-three thousand, one hundred three".