124121040000 has 320 divisors, whose sum is σ = 413248218240. Its totient is φ = 32997888000.

The previous prime is 124121039963. The next prime is 124121040013. The reversal of 124121040000 is 40121421.

It is a tau number, because it is divible by the number of its divisors (320).

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 111119442 + ... + 111120558.

It is an arithmetic number, because the mean of its divisors is an integer number (1291400682).

Almost surely, 2^124121040000 is an apocalyptic number.

124121040000 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 124121040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206624109120).

124121040000 is an abundant number, since it is smaller than the sum of its proper divisors (289127178240).

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

124121040000 is an equidigital number, since it uses as much as digits as its factorization.

124121040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1590 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 124121040000 its reverse (40121421), we get a palindrome (124161161421).

The spelling of 124121040000 in words is "one hundred twenty-four billion, one hundred twenty-one million, forty thousand".