105002520123 has 8 divisors (see below), whose sum is σ = 140087554048. Its totient is φ = 69959583144.

The previous prime is 105002520107. The next prime is 105002520163. The reversal of 105002520123 is 321025200501.

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

It is not a de Polignac number, because 105002520123 - 2⁴ = 105002520107 is a prime.

It is a super-2 number, since 2×105002520123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105002520123.

It is not an unprimeable number, because it can be changed into a prime (105002520163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10518415 + ... + 10528392.

It is an arithmetic number, because the mean of its divisors is an integer number (17510944256).

Almost surely, 2^105002520123 is an apocalyptic number.

105002520123 is a deficient number, since it is larger than the sum of its proper divisors (35085033925).

105002520123 is a wasteful number, since it uses less digits than its factorization.

105002520123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21048473.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 105002520123 its reverse (321025200501), we get a palindrome (426027720624).

The spelling of 105002520123 in words is "one hundred five billion, two million, five hundred twenty thousand, one hundred twenty-three".