123430321140 has 48 divisors (see below), whose sum is σ = 394977028992. Its totient is φ = 28212644736.

The previous prime is 123430321127. The next prime is 123430321163. The reversal of 123430321140 is 41123034321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123430321140.

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, 146940439 + ... + 146941278.

It is an arithmetic number, because the mean of its divisors is an integer number (8228688104).

Almost surely, 2^123430321140 is an apocalyptic number.

123430321140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123430321140 is an abundant number, since it is smaller than the sum of its proper divisors (271546707852).

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

123430321140 is a wasteful number, since it uses less digits than its factorization.

123430321140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293881736 (or 293881734 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 123430321140 its reverse (41123034321), we get a palindrome (164553355461).

The spelling of 123430321140 in words is "one hundred twenty-three billion, four hundred thirty million, three hundred twenty-one thousand, one hundred forty".