120451142540040 has 128 divisors (see below), whose sum is σ = 390700244188800. Its totient is φ = 29531386368000.

The previous prime is 120451142540033. The next prime is 120451142540041. The reversal of 120451142540040 is 40045241154021.

It is a junction number, because it is equal to n+sod(n) for n = 120451142539983 and 120451142540010.

It is not an unprimeable number, because it can be changed into a prime (120451142540041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153417745 + ... + 154200864.

It is an arithmetic number, because the mean of its divisors is an integer number (3052345657725).

Almost surely, 2^{120451142540040} is an apocalyptic number.

120451142540040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120451142540040 is an abundant number, since it is smaller than the sum of its proper divisors (270249101648760).

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

120451142540040 is a wasteful number, since it uses less digits than its factorization.

120451142540040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307618887 (or 307618883 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

Adding to 120451142540040 its reverse (40045241154021), we get a palindrome (160496383694061).

The spelling of 120451142540040 in words is "one hundred twenty trillion, four hundred fifty-one billion, one hundred forty-two million, five hundred forty thousand, forty".