124103421640 has 64 divisors (see below), whose sum is σ = 304905202560. Its totient is φ = 45085893120.

The previous prime is 124103421619. The next prime is 124103421679. The reversal of 124103421640 is 46124301421.

It is a junction number, because it is equal to n+sod(n) for n = 124103421599 and 124103421608.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335052 + ... + 600388.

It is an arithmetic number, because the mean of its divisors is an integer number (4764143790).

Almost surely, 2^124103421640 is an apocalyptic number.

124103421640 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 124103421640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152452601280).

124103421640 is an abundant number, since it is smaller than the sum of its proper divisors (180801780920).

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

124103421640 is a wasteful number, since it uses less digits than its factorization.

124103421640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266422 (or 266418 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 124103421640 in words is "one hundred twenty-four billion, one hundred three million, four hundred twenty-one thousand, six hundred forty".