1054660213021 has 2 divisors, whose sum is σ = 1054660213022. Its totient is φ = 1054660213020.

The previous prime is 1054660213007. The next prime is 1054660213031. The reversal of 1054660213021 is 1203120664501.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 921004896100 + 133655316921 = 959690^2 + 365589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1054660213021 - 2⁹ = 1054660212509 is a prime.

It is a super-2 number, since 2×1054660213021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1054660213031) 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, 527330106510 + 527330106511.

It is an arithmetic number, because the mean of its divisors is an integer number (527330106511).

Almost surely, 2^{1054660213021} is an apocalyptic number.

It is an amenable number.

1054660213021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054660213021 is an equidigital number, since it uses as much as digits as its factorization.

1054660213021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 1054660213021 its reverse (1203120664501), we get a palindrome (2257780877522).

The spelling of 1054660213021 in words is "one trillion, fifty-four billion, six hundred sixty million, two hundred thirteen thousand, twenty-one".