1053220021773 has 4 divisors (see below), whose sum is σ = 1404293362368. Its totient is φ = 702146681180.

The previous prime is 1053220021769. The next prime is 1053220021811. The reversal of 1053220021773 is 3771200223501.

1053220021773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1053220021773 - 2² = 1053220021769 is a prime.

It is a super-2 number, since 2×1053220021773² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053220021703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175536670293 + ... + 175536670298.

It is an arithmetic number, because the mean of its divisors is an integer number (351073340592).

Almost surely, 2^{1053220021773} is an apocalyptic number.

It is an amenable number.

1053220021773 is a deficient number, since it is larger than the sum of its proper divisors (351073340595).

1053220021773 is an equidigital number, since it uses as much as digits as its factorization.

1053220021773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351073340594.

The product of its (nonzero) digits is 17640, while the sum is 33.

The spelling of 1053220021773 in words is "one trillion, fifty-three billion, two hundred twenty million, twenty-one thousand, seven hundred seventy-three".