10500501001 has 4 divisors (see below), whose sum is σ = 10500876100. Its totient is φ = 10500125904.

The previous prime is 10500500953. The next prime is 10500501017. The reversal of 10500501001 is 10010500501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10010500501 = 31 ⋅322919371.

It can be written as a sum of positive squares in 2 ways, for example, as 2342076025 + 8158424976 = 48395^2 + 90324^2 .

It is a cyclic number.

It is not a de Polignac number, because 10500501001 - 2¹⁵ = 10500468233 is a prime.

It is a super-2 number, since 2×10500501001² (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 (10500501091) 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, 141846 + ... + 202783.

It is an arithmetic number, because the mean of its divisors is an integer number (2625219025).

Almost surely, 2^10500501001 is an apocalyptic number.

It is an amenable number.

10500501001 is a deficient number, since it is larger than the sum of its proper divisors (375099).

10500501001 is an equidigital number, since it uses as much as digits as its factorization.

10500501001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375098.

The product of its (nonzero) digits is 25, while the sum is 13.

The spelling of 10500501001 in words is "ten billion, five hundred million, five hundred one thousand, one".