311103320249 has 2 divisors, whose sum is σ = 311103320250. Its totient is φ = 311103320248.

The previous prime is 311103320207. The next prime is 311103320267. The reversal of 311103320249 is 942023301113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283657434025 + 27445886224 = 532595^2 + 165668^2 .

It is a cyclic number.

It is not a de Polignac number, because 311103320249 - 2¹⁶ = 311103254713 is a prime.

It is not a weakly prime, because it can be changed into another prime (311103320299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155551660124 + 155551660125.

It is an arithmetic number, because the mean of its divisors is an integer number (155551660125).

Almost surely, 2^311103320249 is an apocalyptic number.

It is an amenable number.

311103320249 is a deficient number, since it is larger than the sum of its proper divisors (1).

311103320249 is an equidigital number, since it uses as much as digits as its factorization.

311103320249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 311103320249 in words is "three hundred eleven billion, one hundred three million, three hundred twenty thousand, two hundred forty-nine".