1284031206281 has 2 divisors, whose sum is σ = 1284031206282. Its totient is φ = 1284031206280.

The previous prime is 1284031206193. The next prime is 1284031206317. The reversal of 1284031206281 is 1826021304821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829755206281 + 454276000000 = 910909^2 + 674000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1284031206281 - 2²² = 1284027011977 is a prime.

It is a super-2 number, since 2×1284031206281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1284031203281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642015603140 + 642015603141.

It is an arithmetic number, because the mean of its divisors is an integer number (642015603141).

Almost surely, 2^{1284031206281} is an apocalyptic number.

It is an amenable number.

1284031206281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284031206281 is an equidigital number, since it uses as much as digits as its factorization.

1284031206281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 1284031206281 in words is "one trillion, two hundred eighty-four billion, thirty-one million, two hundred six thousand, two hundred eighty-one".