120343431040 has 128 divisors (see below), whose sum is σ = 328925030400. Its totient is φ = 41244346368.

The previous prime is 120343430947. The next prime is 120343431059. The reversal of 120343431040 is 40134343021.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 120343430996 and 120343431014.

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, 18897937 + ... + 18904303.

It is an arithmetic number, because the mean of its divisors is an integer number (2569726800).

Almost surely, 2^120343431040 is an apocalyptic number.

120343431040 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 120343431040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164462515200).

120343431040 is an abundant number, since it is smaller than the sum of its proper divisors (208581599360).

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

120343431040 is an equidigital number, since it uses as much as digits as its factorization.

120343431040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10612 (or 10600 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 120343431040 its reverse (40134343021), we get a palindrome (160477774061).

The spelling of 120343431040 in words is "one hundred twenty billion, three hundred forty-three million, four hundred thirty-one thousand, forty".