100534130405521 has 8 divisors (see below), whose sum is σ = 101188573361960. Its totient is φ = 99879865907328.

The previous prime is 100534130405519. The next prime is 100534130405557. The reversal of 100534130405521 is 125504031435001.

It can be written as a sum of positive squares in 4 ways, for example, as 7095537425025 + 93438592980496 = 2663745^2 + 9666364^2 .

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 100534130405521 - 2¹ = 100534130405519 is a prime.

It is a super-2 number, since 2×100534130405521² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100534130405921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43484106 + ... + 45737683.

It is an arithmetic number, because the mean of its divisors is an integer number (12648571670245).

Almost surely, 2^{100534130405521} is an apocalyptic number.

It is an amenable number.

100534130405521 is a deficient number, since it is larger than the sum of its proper divisors (654442956439).

100534130405521 is an equidigital number, since it uses as much as digits as its factorization.

100534130405521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89229123.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 100534130405521 in words is "one hundred trillion, five hundred thirty-four billion, one hundred thirty million, four hundred five thousand, five hundred twenty-one".