31103313311003 has 4 divisors (see below), whose sum is σ = 32175841356240. Its totient is φ = 30030785265768.

The previous prime is 31103313310997. The next prime is 31103313311047. The reversal of 31103313311003 is 30011331330113.

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 31103313311003 - 2⁸ = 31103313310747 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 31103313311003.

It is not an unprimeable number, because it can be changed into a prime (31103313317003) 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, 536264022575 + ... + 536264022632.

It is an arithmetic number, because the mean of its divisors is an integer number (8043960339060).

Almost surely, 2^{31103313311003} is an apocalyptic number.

31103313311003 is a deficient number, since it is larger than the sum of its proper divisors (1072528045237).

31103313311003 is a wasteful number, since it uses less digits than its factorization.

31103313311003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072528045236.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 31103313311003 its reverse (30011331330113), we get a palindrome (61114644641116).

The spelling of 31103313311003 in words is "thirty-one trillion, one hundred three billion, three hundred thirteen million, three hundred eleven thousand, three".