311121300203 has 8 divisors (see below), whose sum is σ = 355806974208. Its totient is φ = 266495569704.

The previous prime is 311121300143. The next prime is 311121300209. The reversal of 311121300203 is 302003121113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 311121300203 - 2⁸ = 311121299947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311121300209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14974751 + ... + 14995512.

It is an arithmetic number, because the mean of its divisors is an integer number (44475871776).

Almost surely, 2^311121300203 is an apocalyptic number.

311121300203 is a deficient number, since it is larger than the sum of its proper divisors (44685674005).

311121300203 is a wasteful number, since it uses less digits than its factorization.

311121300203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29971753.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 311121300203 its reverse (302003121113), we get a palindrome (613124421316).

The spelling of 311121300203 in words is "three hundred eleven billion, one hundred twenty-one million, three hundred thousand, two hundred three".