120421050040 has 32 divisors (see below), whose sum is σ = 271347641280. Its totient is φ = 48097259392.

The previous prime is 120421050023. The next prime is 120421050041. The reversal of 120421050040 is 40050124021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120421050041) 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, 2196352 + ... + 2250511.

It is an arithmetic number, because the mean of its divisors is an integer number (8479613790).

Almost surely, 2^120421050040 is an apocalyptic number.

120421050040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120421050040 is an abundant number, since it is smaller than the sum of its proper divisors (150926591240).

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

120421050040 is a wasteful number, since it uses less digits than its factorization.

120421050040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447551 (or 4447547 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 120421050040 its reverse (40050124021), we get a palindrome (160471174061).

The spelling of 120421050040 in words is "one hundred twenty billion, four hundred twenty-one million, fifty thousand, forty".