220312101311 has 2 divisors, whose sum is σ = 220312101312. Its totient is φ = 220312101310.

The previous prime is 220312101293. The next prime is 220312101313. The reversal of 220312101311 is 113101213022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220312101311 is a prime.

Together with 220312101313, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220312101311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220312101313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110156050655 + 110156050656.

It is an arithmetic number, because the mean of its divisors is an integer number (110156050656).

Almost surely, 2^220312101311 is an apocalyptic number.

220312101311 is a deficient number, since it is larger than the sum of its proper divisors (1).

220312101311 is an equidigital number, since it uses as much as digits as its factorization.

220312101311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 220312101311 its reverse (113101213022), we get a palindrome (333413314333).

The spelling of 220312101311 in words is "two hundred twenty billion, three hundred twelve million, one hundred one thousand, three hundred eleven".