120243434140 has 48 divisors (see below), whose sum is σ = 254979460512. Its totient is φ = 47629368576.

The previous prime is 120243434099. The next prime is 120243434141. The reversal of 120243434140 is 41434342021.

It is a junction number, because it is equal to n+sod(n) for n = 120243434099 and 120243434108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120243434141) 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, 836442 + ... + 969598.

It is an arithmetic number, because the mean of its divisors is an integer number (5312072094).

Almost surely, 2^120243434140 is an apocalyptic number.

120243434140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120243434140 is an abundant number, since it is smaller than the sum of its proper divisors (134736026372).

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

120243434140 is a wasteful number, since it uses less digits than its factorization.

120243434140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133606 (or 133604 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 120243434140 its reverse (41434342021), we get a palindrome (161677776161).

The spelling of 120243434140 in words is "one hundred twenty billion, two hundred forty-three million, four hundred thirty-four thousand, one hundred forty".