123450411420 has 192 divisors, whose sum is σ = 439131248640. Its totient is φ = 28204609536.

The previous prime is 123450411407. The next prime is 123450411449. The reversal of 123450411420 is 24114054321.

123450411420 is a `hidden beast` number, since 1 + 23 + 4 + 504 + 114 + 20 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10400409 + ... + 10412271.

It is an arithmetic number, because the mean of its divisors is an integer number (2287141920).

Almost surely, 2^123450411420 is an apocalyptic number.

123450411420 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 123450411420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219565624320).

123450411420 is an abundant number, since it is smaller than the sum of its proper divisors (315680837220).

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

123450411420 is a wasteful number, since it uses less digits than its factorization.

123450411420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14641 (or 14633 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 123450411420 its reverse (24114054321), we get a palindrome (147564465741).

The spelling of 123450411420 in words is "one hundred twenty-three billion, four hundred fifty million, four hundred eleven thousand, four hundred twenty".