10500003021 has 8 divisors (see below), whose sum is σ = 14208959584. Its totient is φ = 6895524240.

The previous prime is 10500002999. The next prime is 10500003037. The reversal of 10500003021 is 12030000501.

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

It is not a de Polignac number, because 10500003021 - 2¹³ = 10499994829 is a prime.

It is a super-2 number, since 2×10500003021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10500002988 and 10500003006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10500003061) 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, 26119210 + ... + 26119611.

It is an arithmetic number, because the mean of its divisors is an integer number (1776119948).

Almost surely, 2^10500003021 is an apocalyptic number.

It is an amenable number.

10500003021 is a deficient number, since it is larger than the sum of its proper divisors (3708956563).

10500003021 is an equidigital number, since it uses as much as digits as its factorization.

10500003021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52238891.

The product of its (nonzero) digits is 30, while the sum is 12.

Adding to 10500003021 its reverse (12030000501), we get a palindrome (22530003522).

The spelling of 10500003021 in words is "ten billion, five hundred million, three thousand, twenty-one".