10521550542203 has 16 divisors (see below), whose sum is σ = 10726432407936. Its totient is φ = 10316906496000.

The previous prime is 10521550542193. The next prime is 10521550542263. The reversal of 10521550542203 is 30224505512501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10521550542203 - 2⁴ = 10521550542187 is a prime.

It is a super-2 number, since 2×10521550542203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10521550542263) 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 15 ways as a sum of consecutive naturals, for example, 790314875 + ... + 790328187.

It is an arithmetic number, because the mean of its divisors is an integer number (670402025496).

Almost surely, 2^{10521550542203} is an apocalyptic number.

10521550542203 is a deficient number, since it is larger than the sum of its proper divisors (204881865733).

10521550542203 is a wasteful number, since it uses less digits than its factorization.

10521550542203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21094.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 10521550542203 in words is "ten trillion, five hundred twenty-one billion, five hundred fifty million, five hundred forty-two thousand, two hundred three".