124312020 has 72 divisors (see below), whose sum is σ = 404911584. Its totient is φ = 28413504.

The previous prime is 124311991. The next prime is 124312021. The reversal of 124312020 is 20213421.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124312021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18202 + ... + 24081.

It is an arithmetic number, because the mean of its divisors is an integer number (5623772).

Almost surely, 2^124312020 is an apocalyptic number.

124312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124312020 is an abundant number, since it is smaller than the sum of its proper divisors (280599564).

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

124312020 is a wasteful number, since it uses less digits than its factorization.

124312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42309 (or 42300 counting only the distinct ones).

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

The square root of 124312020 is about 11149.5300349387. The cubic root of 124312020 is about 499.0810052655.

Adding to 124312020 its reverse (20213421), we get a palindrome (144525441).

The spelling of 124312020 in words is "one hundred twenty-four million, three hundred twelve thousand, twenty".