124421020 has 24 divisors (see below), whose sum is σ = 270295200. Its totient is φ = 48052032.

The previous prime is 124420999. The next prime is 124421057. The reversal of 124421020 is 20124421.

It is a junction number, because it is equal to n+sod(n) for n = 124420985 and 124421003.

It is a congruent number.

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, 106680 + ... + 107839.

It is an arithmetic number, because the mean of its divisors is an integer number (11262300).

Almost surely, 2^124421020 is an apocalyptic number.

124421020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124421020 is an abundant number, since it is smaller than the sum of its proper divisors (145874180).

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

124421020 is a wasteful number, since it uses less digits than its factorization.

124421020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214557 (or 214555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 124421020 is about 11154.4170623121. The cubic root of 124421020 is about 499.2268317045.

Adding to 124421020 its reverse (20124421), we get a palindrome (144545441).

The spelling of 124421020 in words is "one hundred twenty-four million, four hundred twenty-one thousand, twenty".