123413430332240 has 160 divisors (see below), whose sum is σ = 295290060226560. Its totient is φ = 47939360256000.

The previous prime is 123413430332123. The next prime is 123413430332287. The reversal of 123413430332240 is 42233034314321.

It is a self number, because there is not a number n which added to its sum of digits gives 123413430332240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3493441457 + ... + 3493476783.

It is an arithmetic number, because the mean of its divisors is an integer number (1845562876416).

Almost surely, 2^{123413430332240} is an apocalyptic number.

123413430332240 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 123413430332240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147645030113280).

123413430332240 is an abundant number, since it is smaller than the sum of its proper divisors (171876629894320).

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

123413430332240 is a wasteful number, since it uses less digits than its factorization.

123413430332240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40261 (or 40255 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 123413430332240 its reverse (42233034314321), we get a palindrome (165646464646561).

The spelling of 123413430332240 in words is "one hundred twenty-three trillion, four hundred thirteen billion, four hundred thirty million, three hundred thirty-two thousand, two hundred forty".