123352422403540 has 48 divisors (see below), whose sum is σ = 282593988452160. Its totient is φ = 44854664014080.

The previous prime is 123352422403531. The next prime is 123352422403559. The reversal of 123352422403540 is 45304224253321.

It is a super-2 number, since 2×123352422403540² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123352422403493 and 123352422403502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8291119 + ... + 17760841.

It is an arithmetic number, because the mean of its divisors is an integer number (5887374759420).

Almost surely, 2^{123352422403540} is an apocalyptic number.

123352422403540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123352422403540 is an abundant number, since it is smaller than the sum of its proper divisors (159241566048620).

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

123352422403540 is a wasteful number, since it uses less digits than its factorization.

123352422403540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9528952 (or 9528950 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 123352422403540 its reverse (45304224253321), we get a palindrome (168656646656861).

The spelling of 123352422403540 in words is "one hundred twenty-three trillion, three hundred fifty-two billion, four hundred twenty-two million, four hundred three thousand, five hundred forty".