124211553420 has 192 divisors, whose sum is σ = 372204564480. Its totient is φ = 30859782912.

The previous prime is 124211553413. The next prime is 124211553421. The reversal of 124211553420 is 24355112421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (124211553421) 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, 21475849 + ... + 21481631.

It is an arithmetic number, because the mean of its divisors is an integer number (1938565440).

Almost surely, 2^124211553420 is an apocalyptic number.

124211553420 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 124211553420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186102282240).

124211553420 is an abundant number, since it is smaller than the sum of its proper divisors (247993011060).

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

124211553420 is a wasteful number, since it uses less digits than its factorization.

124211553420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6124 (or 6122 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 124211553420 its reverse (24355112421), we get a palindrome (148566665841).

The spelling of 124211553420 in words is "one hundred twenty-four billion, two hundred eleven million, five hundred fifty-three thousand, four hundred twenty".