120133135420 has 12 divisors (see below), whose sum is σ = 252279584424. Its totient is φ = 48053254160.

The previous prime is 120133135403. The next prime is 120133135429. The reversal of 120133135420 is 24531331021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120133135429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3003328366 + ... + 3003328405.

It is an arithmetic number, because the mean of its divisors is an integer number (21023298702).

Almost surely, 2^120133135420 is an apocalyptic number.

120133135420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120133135420 is an abundant number, since it is smaller than the sum of its proper divisors (132146449004).

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

120133135420 is a wasteful number, since it uses less digits than its factorization.

120133135420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006656780 (or 6006656778 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 120133135420 its reverse (24531331021), we get a palindrome (144664466441).

The spelling of 120133135420 in words is "one hundred twenty billion, one hundred thirty-three million, one hundred thirty-five thousand, four hundred twenty".