311031001130203 has 16 divisors (see below), whose sum is σ = 324658373276160. Its totient is φ = 297412327010304.

The previous prime is 311031001130177. The next prime is 311031001130209. The reversal of 311031001130203 is 302031100130113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311031001130203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311031001130209) 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 15 ways as a sum of consecutive naturals, for example, 2175898708 + ... + 2176041646.

It is an arithmetic number, because the mean of its divisors is an integer number (20291148329760).

Almost surely, 2^{311031001130203} is an apocalyptic number.

311031001130203 is a deficient number, since it is larger than the sum of its proper divisors (13627372145957).

311031001130203 is a wasteful number, since it uses less digits than its factorization.

311031001130203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172698.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 311031001130203 its reverse (302031100130113), we get a palindrome (613062101260316).

The spelling of 311031001130203 in words is "three hundred eleven trillion, thirty-one billion, one million, one hundred thirty thousand, two hundred three".