103445320 has 128 divisors (see below), whose sum is σ = 268790400. Its totient is φ = 35777280.

The previous prime is 103445317. The next prime is 103445369. The reversal of 103445320 is 23544301.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 103445291 and 103445300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1543927 + ... + 1543993.

It is an arithmetic number, because the mean of its divisors is an integer number (2099925).

Almost surely, 2^103445320 is an apocalyptic number.

103445320 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 103445320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134395200).

103445320 is an abundant number, since it is smaller than the sum of its proper divisors (165345080).

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

103445320 is a wasteful number, since it uses less digits than its factorization.

103445320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 103445320 is about 10170.8072442653. The cubic root of 103445320 is about 469.4293965691.

Adding to 103445320 its reverse (23544301), we get a palindrome (126989621).

The spelling of 103445320 in words is "one hundred three million, four hundred forty-five thousand, three hundred twenty".