123530511024140 has 192 divisors, whose sum is σ = 287363815820928. Its totient is φ = 44233811558400.

The previous prime is 123530511024121. The next prime is 123530511024149. The reversal of 123530511024140 is 41420115035321.

It is a super-4 number, since 4×123530511024140⁴ (a number of 57 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123530511024097 and 123530511024106.

It is not an unprimeable number, because it can be changed into a prime (123530511024149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1866748094 + ... + 1866814266.

It is an arithmetic number, because the mean of its divisors is an integer number (1496686540734).

Almost surely, 2^{123530511024140} is an apocalyptic number.

123530511024140 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 123530511024140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143681907910464).

123530511024140 is an abundant number, since it is smaller than the sum of its proper divisors (163833304796788).

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

123530511024140 is a wasteful number, since it uses less digits than its factorization.

123530511024140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66828 (or 66826 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 123530511024140 its reverse (41420115035321), we get a palindrome (164950626059461).

The spelling of 123530511024140 in words is "one hundred twenty-three trillion, five hundred thirty billion, five hundred eleven million, twenty-four thousand, one hundred forty".