124102021120 has 208 divisors, whose sum is σ = 371298423168. Its totient is φ = 38680657920.

The previous prime is 124102021117. The next prime is 124102021223. The reversal of 124102021120 is 21120201421.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 124102021094 and 124102021103.

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, 1537612 + ... + 1616308.

Almost surely, 2^124102021120 is an apocalyptic number.

124102021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124102021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185649211584).

124102021120 is an abundant number, since it is smaller than the sum of its proper divisors (247196402048).

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

124102021120 is an equidigital number, since it uses as much as digits as its factorization.

124102021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78744 (or 78722 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 124102021120 its reverse (21120201421), we get a palindrome (145222222541).

The spelling of 124102021120 in words is "one hundred twenty-four billion, one hundred two million, twenty-one thousand, one hundred twenty".