100313220 has 48 divisors (see below), whose sum is σ = 321003648. Its totient is φ = 22928640.

The previous prime is 100313203. The next prime is 100313231. The reversal of 100313220 is 22313001.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 100313196 and 100313205.

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 15 ways as a sum of consecutive naturals, for example, 119001 + ... + 119840.

It is an arithmetic number, because the mean of its divisors is an integer number (6687576).

Almost surely, 2^100313220 is an apocalyptic number.

100313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100313220 is an abundant number, since it is smaller than the sum of its proper divisors (220690428).

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

100313220 is a wasteful number, since it uses less digits than its factorization.

100313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238860 (or 238858 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 100313220 is about 10015.6487558221. The cubic root of 100313220 is about 464.6429910899.

Adding to 100313220 its reverse (22313001), we get a palindrome (122626221).

The spelling of 100313220 in words is "one hundred million, three hundred thirteen thousand, two hundred twenty".