105203430 has 24 divisors (see below), whose sum is σ = 273529152. Its totient is φ = 28054224.

The previous prime is 105203411. The next prime is 105203453. The reversal of 105203430 is 34302501.

It is a super-2 number, since 2×105203430² = 22135523367529800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 584374 + ... + 584553.

It is an arithmetic number, because the mean of its divisors is an integer number (11397048).

Almost surely, 2^105203430 is an apocalyptic number.

105203430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105203430 is an abundant number, since it is smaller than the sum of its proper divisors (168325722).

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

105203430 is a wasteful number, since it uses less digits than its factorization.

105203430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168940 (or 1168937 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 105203430 is about 10256.8723302964. The cubic root of 105203430 is about 472.0738746526.

Adding to 105203430 its reverse (34302501), we get a palindrome (139505931).

The spelling of 105203430 in words is "one hundred five million, two hundred three thousand, four hundred thirty".