123343413240 has 32 divisors (see below), whose sum is σ = 370030240080. Its totient is φ = 32891576832.

The previous prime is 123343413161. The next prime is 123343413247. The reversal of 123343413240 is 42314343321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 123343413198 and 123343413207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123343413247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513930769 + ... + 513931008.

Almost surely, 2^123343413240 is an apocalyptic number.

123343413240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123343413240 is an abundant number, since it is smaller than the sum of its proper divisors (246686826840).

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

123343413240 is a wasteful number, since it uses less digits than its factorization.

123343413240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027861791 (or 1027861787 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 123343413240 its reverse (42314343321), we get a palindrome (165657756561).

The spelling of 123343413240 in words is "one hundred twenty-three billion, three hundred forty-three million, four hundred thirteen thousand, two hundred forty".