124013220 has 24 divisors (see below), whose sum is σ = 347237184. Its totient is φ = 33070176.

The previous prime is 124013191. The next prime is 124013231. The reversal of 124013220 is 22310421.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 124013220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033384 + ... + 1033503.

It is an arithmetic number, because the mean of its divisors is an integer number (14468216).

Almost surely, 2^124013220 is an apocalyptic number.

124013220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124013220 is an abundant number, since it is smaller than the sum of its proper divisors (223223964).

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

124013220 is a wasteful number, since it uses less digits than its factorization.

124013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066899 (or 2066897 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 124013220 is about 11136.1223053629. The cubic root of 124013220 is about 498.6808159009.

Adding to 124013220 its reverse (22310421), we get a palindrome (146323641).

The spelling of 124013220 in words is "one hundred twenty-four million, thirteen thousand, two hundred twenty".