124521052140 has 120 divisors (see below), whose sum is σ = 391693401792. Its totient is φ = 33114977280.

The previous prime is 124521052129. The next prime is 124521052163. The reversal of 124521052140 is 41250125421.

It is a happy number.

124521052140 is a `hidden beast` number, since 12 + 452 + 10 + 52 + 140 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 489820 + ... + 699260.

Almost surely, 2^124521052140 is an apocalyptic number.

124521052140 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 124521052140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195846700896).

124521052140 is an abundant number, since it is smaller than the sum of its proper divisors (267172349652).

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

124521052140 is a wasteful number, since it uses less digits than its factorization.

124521052140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209829 (or 209818 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 124521052140 its reverse (41250125421), we get a palindrome (165771177561).

The spelling of 124521052140 in words is "one hundred twenty-four billion, five hundred twenty-one million, fifty-two thousand, one hundred forty".