103421100 has 72 divisors (see below), whose sum is σ = 304355520. Its totient is φ = 27106880.

The previous prime is 103421093. The next prime is 103421113. The reversal of 103421100 is 1124301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14779 + ... + 20621.

It is an arithmetic number, because the mean of its divisors is an integer number (4227160).

Almost surely, 2^103421100 is an apocalyptic number.

103421100 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 103421100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152177760).

103421100 is an abundant number, since it is smaller than the sum of its proper divisors (200934420).

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

103421100 is a wasteful number, since it uses less digits than its factorization.

103421100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919 (or 5912 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 103421100 is about 10169.6165119438. The cubic root of 103421100 is about 469.3927573493.

Adding to 103421100 its reverse (1124301), we get a palindrome (104545401).

The spelling of 103421100 in words is "one hundred three million, four hundred twenty-one thousand, one hundred".