10521513203 has 8 divisors (see below), whose sum is σ = 10714555296. Its totient is φ = 10329134400.

The previous prime is 10521513187. The next prime is 10521513209. The reversal of 10521513203 is 30231512501.

It is a happy number.

10521513203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10521513203 - 2⁴ = 10521513187 is a prime.

It is a super-2 number, since 2×10521513203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10521513209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133751 + ... + 197312.

It is an arithmetic number, because the mean of its divisors is an integer number (1339319412).

Almost surely, 2^10521513203 is an apocalyptic number.

10521513203 is a deficient number, since it is larger than the sum of its proper divisors (193042093).

10521513203 is an equidigital number, since it uses as much as digits as its factorization.

10521513203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331645.

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 10521513203 in words is "ten billion, five hundred twenty-one million, five hundred thirteen thousand, two hundred three".