124720320 has 56 divisors (see below), whose sum is σ = 395990064. Its totient is φ = 33258496.

The previous prime is 124720259. The next prime is 124720357. The reversal of 124720320 is 23027421.

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 7 ways as a sum of consecutive naturals, for example, 63999 + ... + 65918.

Almost surely, 2^124720320 is an apocalyptic number.

124720320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124720320 is an abundant number, since it is smaller than the sum of its proper divisors (271269744).

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

124720320 is a wasteful number, since it uses less digits than its factorization.

124720320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129937 (or 129927 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 124720320 is about 11167.8252135320. The cubic root of 124720320 is about 499.6268148683.

Adding to 124720320 its reverse (23027421), we get a palindrome (147747741).

The spelling of 124720320 in words is "one hundred twenty-four million, seven hundred twenty thousand, three hundred twenty".