31311003110201 has 4 divisors (see below), whose sum is σ = 31311040166400. Its totient is φ = 31310966054004.

The previous prime is 31311003110173. The next prime is 31311003110203. The reversal of 31311003110201 is 10201130011313.

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 a de Polignac number, because none of the positive numbers 2^k-31311003110201 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 31311003110201.

It is not an unprimeable number, because it can be changed into a prime (31311003110203) 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, 17230361 + ... + 18960678.

It is an arithmetic number, because the mean of its divisors is an integer number (7827760041600).

Almost surely, 2^{31311003110201} is an apocalyptic number.

It is an amenable number.

31311003110201 is a deficient number, since it is larger than the sum of its proper divisors (37056199).

31311003110201 is an equidigital number, since it uses as much as digits as its factorization.

31311003110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37056198.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 31311003110201 its reverse (10201130011313), we get a palindrome (41512133121514).

The spelling of 31311003110201 in words is "thirty-one trillion, three hundred eleven billion, three million, one hundred ten thousand, two hundred one".