124021440312 has 256 divisors, whose sum is σ = 390701076480. Its totient is φ = 31869926400.

The previous prime is 124021440299. The next prime is 124021440317. The reversal of 124021440312 is 213044120421.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124021440317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113054548 + ... + 113055644.

It is an arithmetic number, because the mean of its divisors is an integer number (1526176080).

Almost surely, 2^124021440312 is an apocalyptic number.

124021440312 is a gapful number since it is divisible by the number (12) 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 124021440312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195350538240).

124021440312 is an abundant number, since it is smaller than the sum of its proper divisors (266679636168).

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

124021440312 is a wasteful number, since it uses less digits than its factorization.

124021440312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 124021440312 its reverse (213044120421), we get a palindrome (337065560733).

The spelling of 124021440312 in words is "one hundred twenty-four billion, twenty-one million, four hundred forty thousand, three hundred twelve".