105553123320 has 64 divisors (see below), whose sum is σ = 317827952640. Its totient is φ = 28043625600.

The previous prime is 105553123237. The next prime is 105553123321. The reversal of 105553123320 is 23321355501.

It is a super-2 number, since 2×105553123320² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105553123321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1590376 + ... + 1655415.

It is an arithmetic number, because the mean of its divisors is an integer number (4966061760).

Almost surely, 2^105553123320 is an apocalyptic number.

105553123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105553123320 is an abundant number, since it is smaller than the sum of its proper divisors (212274829320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105553123320 is a wasteful number, since it uses less digits than its factorization.

105553123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246076 (or 3246072 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 105553123320 its reverse (23321355501), we get a palindrome (128874478821).

The spelling of 105553123320 in words is "one hundred five billion, five hundred fifty-three million, one hundred twenty-three thousand, three hundred twenty".