120353421506 has 8 divisors (see below), whose sum is σ = 180759524880. Its totient is φ = 60100246548.

The previous prime is 120353421499. The next prime is 120353421521. The reversal of 120353421506 is 605124353021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38230136 + ... + 38233283.

It is an arithmetic number, because the mean of its divisors is an integer number (22594940610).

Almost surely, 2^120353421506 is an apocalyptic number.

120353421506 is a deficient number, since it is larger than the sum of its proper divisors (60406103374).

120353421506 is an equidigital number, since it uses as much as digits as its factorization.

120353421506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76464208.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 120353421506 its reverse (605124353021), we get a palindrome (725477774527).

The spelling of 120353421506 in words is "one hundred twenty billion, three hundred fifty-three million, four hundred twenty-one thousand, five hundred six".