120203456440 has 32 divisors (see below), whose sum is σ = 270479412000. Its totient is φ = 48077536384.

The previous prime is 120203456431. The next prime is 120203456441. The reversal of 120203456440 is 44654302021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120203456441) 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, 415581 + ... + 642739.

It is an arithmetic number, because the mean of its divisors is an integer number (8452481625).

Almost surely, 2^120203456440 is an apocalyptic number.

120203456440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120203456440 is an abundant number, since it is smaller than the sum of its proper divisors (150275955560).

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

120203456440 is a wasteful number, since it uses less digits than its factorization.

120203456440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240399 (or 240395 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 120203456440 its reverse (44654302021), we get a palindrome (164857758461).

The spelling of 120203456440 in words is "one hundred twenty billion, two hundred three million, four hundred fifty-six thousand, four hundred forty".