105121233550 has 48 divisors (see below), whose sum is σ = 200289961872. Its totient is φ = 41026003200.

The previous prime is 105121233493. The next prime is 105121233587. The reversal of 105121233550 is 55332121501.

It is a super-2 number, since 2×105121233550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1988460 + ... + 2040640.

It is an arithmetic number, because the mean of its divisors is an integer number (4172707539).

Almost surely, 2^105121233550 is an apocalyptic number.

105121233550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105121233550 is a deficient number, since it is larger than the sum of its proper divisors (95168728322).

105121233550 is a wasteful number, since it uses less digits than its factorization.

105121233550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53173 (or 53168 counting only the distinct ones).

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

The spelling of 105121233550 in words is "one hundred five billion, one hundred twenty-one million, two hundred thirty-three thousand, five hundred fifty".