311012147 has 2 divisors, whose sum is σ = 311012148. Its totient is φ = 311012146.

The previous prime is 311012123. The next prime is 311012171. The reversal of 311012147 is 741210113.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (311012123) and next prime (311012171).

It is a cyclic number.

It is not a de Polignac number, because 311012147 - 2¹⁶ = 310946611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (311012747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155506073 + 155506074.

It is an arithmetic number, because the mean of its divisors is an integer number (155506074).

Almost surely, 2^311012147 is an apocalyptic number.

311012147 is a deficient number, since it is larger than the sum of its proper divisors (1).

311012147 is an equidigital number, since it uses as much as digits as its factorization.

311012147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 311012147 is about 17635.5364817745. The cubic root of 311012147 is about 677.5257159032.

The spelling of 311012147 in words is "three hundred eleven million, twelve thousand, one hundred forty-seven".