1021144004911 has 2 divisors, whose sum is σ = 1021144004912. Its totient is φ = 1021144004910.

The previous prime is 1021144004897. The next prime is 1021144004971. The reversal of 1021144004911 is 1194004411201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021144004911 - 2²¹ = 1021141907759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021144004911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021144004971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510572002455 + 510572002456.

It is an arithmetic number, because the mean of its divisors is an integer number (510572002456).

Almost surely, 2^{1021144004911} is an apocalyptic number.

1021144004911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021144004911 is an equidigital number, since it uses as much as digits as its factorization.

1021144004911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 1021144004911 in words is "one trillion, twenty-one billion, one hundred forty-four million, four thousand, nine hundred eleven".