11302445571921 has 27 divisors (see below), whose sum is σ = 18991302684393. Its totient is φ = 6458499983880.

The previous prime is 11302445571811. The next prime is 11302445571931. The reversal of 11302445571921 is 12917554420311.

The square root of 11302445571921 is 3361911.

It is a perfect power (a square), and thus also a powerful number.

11302445571921 is a `hidden beast` number, since 1 + 1 + 3 + 0 + 2 + 4 + 4 + 557 + 1 + 92 + 1 = 666.

It is not a de Polignac number, because 11302445571921 - 2⁷ = 11302445571793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11302445571931) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 70520086 + ... + 70680176.

Almost surely, 2^{11302445571921} is an apocalyptic number.

11302445571921 is the 3361911-st square number.

11302445571921 is the 1680956-th centered octagonal number.

It is an amenable number.

11302445571921 is a deficient number, since it is larger than the sum of its proper divisors (7688857112472).

11302445571921 is an frugal number, since it uses more digits than its factorization.

11302445571921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320202 (or 160101 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 11302445571921 in words is "eleven trillion, three hundred two billion, four hundred forty-five million, five hundred seventy-one thousand, nine hundred twenty-one".