1228284311 has 2 divisors, whose sum is σ = 1228284312. Its totient is φ = 1228284310.

The previous prime is 1228284287. The next prime is 1228284329. The reversal of 1228284311 is 1134828221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1228284311 - 2⁶ = 1228284247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228284011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614142155 + 614142156.

It is an arithmetic number, because the mean of its divisors is an integer number (614142156).

Almost surely, 2^1228284311 is an apocalyptic number.

1228284311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228284311 is an equidigital number, since it uses as much as digits as its factorization.

1228284311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 32.

The square root of 1228284311 is about 35046.8873225569. The cubic root of 1228284311 is about 1070.9428644403.

The spelling of 1228284311 in words is "one billion, two hundred twenty-eight million, two hundred eighty-four thousand, three hundred eleven".