1024454345521 has 4 divisors (see below), whose sum is σ = 1024909458544. Its totient is φ = 1023999232500.

The previous prime is 1024454345443. The next prime is 1024454345527. The reversal of 1024454345521 is 1255434544201.

1024454345521 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 1024454345521 - 2⁹ = 1024454345009 is a prime.

It is a super-2 number, since 2×1024454345521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1024454345527) 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, 227553135 + ... + 227557636.

It is an arithmetic number, because the mean of its divisors is an integer number (256227364636).

Almost surely, 2^{1024454345521} is an apocalyptic number.

It is an amenable number.

1024454345521 is a deficient number, since it is larger than the sum of its proper divisors (455113023).

1024454345521 is an equidigital number, since it uses as much as digits as its factorization.

1024454345521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455113022.

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 1024454345521 its reverse (1255434544201), we get a palindrome (2279888889722).

The spelling of 1024454345521 in words is "one trillion, twenty-four billion, four hundred fifty-four million, three hundred forty-five thousand, five hundred twenty-one".