1011021002143 has 2 divisors, whose sum is σ = 1011021002144. Its totient is φ = 1011021002142.

The previous prime is 1011021002093. The next prime is 1011021002197. The reversal of 1011021002143 is 3412001201101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011021002143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011021002443) 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, 505510501071 + 505510501072.

It is an arithmetic number, because the mean of its divisors is an integer number (505510501072).

Almost surely, 2^{1011021002143} is an apocalyptic number.

1011021002143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011021002143 is an equidigital number, since it uses as much as digits as its factorization.

1011021002143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1011021002143 its reverse (3412001201101), we get a palindrome (4423022203244).

The spelling of 1011021002143 in words is "one trillion, eleven billion, twenty-one million, two thousand, one hundred forty-three".