311230122001 has 4 divisors (see below), whose sum is σ = 311231333232. Its totient is φ = 311228910772.

The previous prime is 311230121989. The next prime is 311230122019. The reversal of 311230122001 is 100221032113.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 311230122001 - 2¹³ = 311230113809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311230122061) 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, 50695 + ... + 790588.

It is an arithmetic number, because the mean of its divisors is an integer number (77807833308).

Almost surely, 2^311230122001 is an apocalyptic number.

It is an amenable number.

311230122001 is a deficient number, since it is larger than the sum of its proper divisors (1211231).

311230122001 is an equidigital number, since it uses as much as digits as its factorization.

311230122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211230.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 311230122001 its reverse (100221032113), we get a palindrome (411451154114).

The spelling of 311230122001 in words is "three hundred eleven billion, two hundred thirty million, one hundred twenty-two thousand, one".