10605505123 has 4 divisors (see below), whose sum is σ = 10635047280. Its totient is φ = 10575962968.

The previous prime is 10605505121. The next prime is 10605505133. The reversal of 10605505123 is 32150550601.

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

It is a cyclic number.

It is not a de Polignac number, because 10605505123 - 2¹ = 10605505121 is a prime.

It is a super-2 number, since 2×10605505123² (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 = 10605505091 and 10605505100.

It is not an unprimeable number, because it can be changed into a prime (10605505121) 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, 14770540 + ... + 14771257.

It is an arithmetic number, because the mean of its divisors is an integer number (2658761820).

Almost surely, 2^10605505123 is an apocalyptic number.

10605505123 is a deficient number, since it is larger than the sum of its proper divisors (29542157).

10605505123 is an equidigital number, since it uses as much as digits as its factorization.

10605505123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29542156.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 10605505123 in words is "ten billion, six hundred five million, five hundred five thousand, one hundred twenty-three".