1011021213043 has 2 divisors, whose sum is σ = 1011021213044. Its totient is φ = 1011021213042.

The previous prime is 1011021213011. The next prime is 1011021213047. The reversal of 1011021213043 is 3403121201101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011021213043 - 2⁵ = 1011021213011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011021213043.

It is not a weakly prime, because it can be changed into another prime (1011021213047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505510606521 + 505510606522.

It is an arithmetic number, because the mean of its divisors is an integer number (505510606522).

Almost surely, 2^{1011021213043} is an apocalyptic number.

1011021213043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011021213043 is an equidigital number, since it uses as much as digits as its factorization.

1011021213043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1011021213043 its reverse (3403121201101), we get a palindrome (4414142414144).

The spelling of 1011021213043 in words is "one trillion, eleven billion, twenty-one million, two hundred thirteen thousand, forty-three".