120534342040520 has 64 divisors (see below), whose sum is σ = 275891891425920. Its totient is φ = 47386045845504.

The previous prime is 120534342040493. The next prime is 120534342040529. The reversal of 120534342040520 is 25040243435021.

It is a happy number.

It is a super-2 number, since 2×120534342040520² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120534342040529) 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, 93415004 + ... + 94696523.

It is an arithmetic number, because the mean of its divisors is an integer number (4310810803530).

Almost surely, 2^{120534342040520} is an apocalyptic number.

120534342040520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120534342040520 is an abundant number, since it is smaller than the sum of its proper divisors (155357549385400).

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

120534342040520 is a wasteful number, since it uses less digits than its factorization.

120534342040520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188111814 (or 188111810 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 120534342040520 its reverse (25040243435021), we get a palindrome (145574585475541).

The spelling of 120534342040520 in words is "one hundred twenty trillion, five hundred thirty-four billion, three hundred forty-two million, forty thousand, five hundred twenty".