10021500004541 has 4 divisors (see below), whose sum is σ = 10021510898784. Its totient is φ = 10021489110300.

The previous prime is 10021500004519. The next prime is 10021500004609. The reversal of 10021500004541 is 14540000512001.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021500004541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021500004741) 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, 3925625 + ... + 5954286.

It is an arithmetic number, because the mean of its divisors is an integer number (2505377724696).

Almost surely, 2^{10021500004541} is an apocalyptic number.

It is an amenable number.

10021500004541 is a deficient number, since it is larger than the sum of its proper divisors (10894243).

10021500004541 is an equidigital number, since it uses as much as digits as its factorization.

10021500004541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10894242.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 10021500004541 its reverse (14540000512001), we get a palindrome (24561500516542).

The spelling of 10021500004541 in words is "ten trillion, twenty-one billion, five hundred million, four thousand, five hundred forty-one".