10102520105 has 4 divisors (see below), whose sum is σ = 12123024132. Its totient is φ = 8082016080.

The previous prime is 10102520093. The next prime is 10102520159. The reversal of 10102520105 is 50102520101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8074999321 + 2027520784 = 89861^2 + 45028^2 .

It is not a de Polignac number, because 10102520105 - 2⁶ = 10102520041 is a prime.

It is a super-2 number, since 2×10102520105² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010252006 + ... + 1010252015.

It is an arithmetic number, because the mean of its divisors is an integer number (3030756033).

Almost surely, 2^10102520105 is an apocalyptic number.

It is an amenable number.

10102520105 is a deficient number, since it is larger than the sum of its proper divisors (2020504027).

10102520105 is an equidigital number, since it uses as much as digits as its factorization.

10102520105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020504026.

The product of its (nonzero) digits is 100, while the sum is 17.

The spelling of 10102520105 in words is "ten billion, one hundred two million, five hundred twenty thousand, one hundred five".