311233123311109 has 2 divisors, whose sum is σ = 311233123311110. Its totient is φ = 311233123311108.

The previous prime is 311233123310957. The next prime is 311233123311113. The reversal of 311233123311109 is 901113321332113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290164821350625 + 21068301960484 = 17034225^2 + 4590022^2 .

It is a cyclic number.

It is not a de Polignac number, because 311233123311109 - 2¹³ = 311233123302917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311233120311109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155616561655554 + 155616561655555.

It is an arithmetic number, because the mean of its divisors is an integer number (155616561655555).

Almost surely, 2^{311233123311109} is an apocalyptic number.

It is an amenable number.

311233123311109 is a deficient number, since it is larger than the sum of its proper divisors (1).

311233123311109 is an equidigital number, since it uses as much as digits as its factorization.

311233123311109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 311233123311109 in words is "three hundred eleven trillion, two hundred thirty-three billion, one hundred twenty-three million, three hundred eleven thousand, one hundred nine".