311102202220189 has 2 divisors, whose sum is σ = 311102202220190. Its totient is φ = 311102202220188.

The previous prime is 311102202220153. The next prime is 311102202220213. The reversal of 311102202220189 is 981022202201113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290165400514564 + 20936801705625 = 17034242^2 + 4575675^2 .

It is a cyclic number.

It is not a de Polignac number, because 311102202220189 - 2⁴¹ = 308903178964637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311102202224189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155551101110094 + 155551101110095.

It is an arithmetic number, because the mean of its divisors is an integer number (155551101110095).

Almost surely, 2^{311102202220189} is an apocalyptic number.

It is an amenable number.

311102202220189 is a deficient number, since it is larger than the sum of its proper divisors (1).

311102202220189 is an equidigital number, since it uses as much as digits as its factorization.

311102202220189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 311102202220189 in words is "three hundred eleven trillion, one hundred two billion, two hundred two million, two hundred twenty thousand, one hundred eighty-nine".