1053353204021 has 2 divisors, whose sum is σ = 1053353204022. Its totient is φ = 1053353204020.

The previous prime is 1053353204017. The next prime is 1053353204117. The reversal of 1053353204021 is 1204023533501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 880641480625 + 172711723396 = 938425^2 + 415586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053353204021 - 2² = 1053353204017 is a prime.

It is a super-2 number, since 2×1053353204021² (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 (1053353204221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526676602010 + 526676602011.

It is an arithmetic number, because the mean of its divisors is an integer number (526676602011).

Almost surely, 2^{1053353204021} is an apocalyptic number.

It is an amenable number.

1053353204021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053353204021 is an equidigital number, since it uses as much as digits as its factorization.

1053353204021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 1053353204021 its reverse (1204023533501), we get a palindrome (2257376737522).

The spelling of 1053353204021 in words is "one trillion, fifty-three billion, three hundred fifty-three million, two hundred four thousand, twenty-one".