105303012100 has 144 divisors (see below), whose sum is σ = 270969281856. Its totient is φ = 35015616000.

The previous prime is 105303012083. The next prime is 105303012151. The reversal of 105303012100 is 1210303501.

It is a super-2 number, since 2×105303012100² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1495690 + ... + 1564510.

It is an arithmetic number, because the mean of its divisors is an integer number (1881731124).

Almost surely, 2^105303012100 is an apocalyptic number.

105303012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105303012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135484640928).

105303012100 is an abundant number, since it is smaller than the sum of its proper divisors (165666269756).

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

105303012100 is a wasteful number, since it uses less digits than its factorization.

105303012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68966 (or 68959 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

Adding to 105303012100 its reverse (1210303501), we get a palindrome (106513315601).

The spelling of 105303012100 in words is "one hundred five billion, three hundred three million, twelve thousand, one hundred".