1284031357111 has 2 divisors, whose sum is σ = 1284031357112. Its totient is φ = 1284031357110.

The previous prime is 1284031357069. The next prime is 1284031357247. The reversal of 1284031357111 is 1117531304821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1284031357111 - 2⁷ = 1284031356983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1284031357711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642015678555 + 642015678556.

It is an arithmetic number, because the mean of its divisors is an integer number (642015678556).

Almost surely, 2^{1284031357111} is an apocalyptic number.

1284031357111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284031357111 is an equidigital number, since it uses as much as digits as its factorization.

1284031357111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 1284031357111 in words is "one trillion, two hundred eighty-four billion, thirty-one million, three hundred fifty-seven thousand, one hundred eleven".