123354230154240 has 176 divisors, whose sum is σ = 395325195608448. Its totient is φ = 32829062774784.

The previous prime is 123354230154217. The next prime is 123354230154247. The reversal of 123354230154240 is 42451032453321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123354230154247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256897 + ... + 15709056.

Almost surely, 2^{123354230154240} is an apocalyptic number.

123354230154240 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 123354230154240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197662597804224).

123354230154240 is an abundant number, since it is smaller than the sum of its proper divisors (271970965454208).

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

123354230154240 is a wasteful number, since it uses less digits than its factorization.

123354230154240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15966484 (or 15966466 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 123354230154240 in words is "one hundred twenty-three trillion, three hundred fifty-four billion, two hundred thirty million, one hundred fifty-four thousand, two hundred forty".