1051326045521 has 8 divisors (see below), whose sum is σ = 1052920297440. Its totient is φ = 1049731955712.

The previous prime is 1051326045491. The next prime is 1051326045529. The reversal of 1051326045521 is 1255406231501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1051326045521 - 2¹⁴ = 1051326029137 is a prime.

It is a super-2 number, since 2×1051326045521² (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 (1051326045529) 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 in 7 ways as a sum of consecutive naturals, for example, 21482546 + ... + 21531428.

It is an arithmetic number, because the mean of its divisors is an integer number (131615037180).

Almost surely, 2^{1051326045521} is an apocalyptic number.

It is an amenable number.

1051326045521 is a deficient number, since it is larger than the sum of its proper divisors (1594251919).

1051326045521 is an equidigital number, since it uses as much as digits as its factorization.

1051326045521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81055.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 1051326045521 in words is "one trillion, fifty-one billion, three hundred twenty-six million, forty-five thousand, five hundred twenty-one".