105013123550 has 48 divisors (see below), whose sum is σ = 200085653520. Its totient is φ = 40991727360.

The previous prime is 105013123529. The next prime is 105013123559. The reversal of 105013123550 is 55321310501.

It is a happy number.

It is a super-2 number, since 2×105013123550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105013123559) 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 23 ways as a sum of consecutive naturals, for example, 274232 + ... + 534068.

It is an arithmetic number, because the mean of its divisors is an integer number (4168451115).

Almost surely, 2^105013123550 is an apocalyptic number.

105013123550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105013123550 is a deficient number, since it is larger than the sum of its proper divisors (95072529970).

105013123550 is a wasteful number, since it uses less digits than its factorization.

105013123550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260045 (or 260040 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The spelling of 105013123550 in words is "one hundred five billion, thirteen million, one hundred twenty-three thousand, five hundred fifty".