120420100145 has 8 divisors (see below), whose sum is σ = 144595414656. Its totient is φ = 96275217136.

The previous prime is 120420100103. The next prime is 120420100159. The reversal of 120420100145 is 541001024021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 120420100145 - 2⁸ = 120420099889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7599167 + ... + 7614996.

It is an arithmetic number, because the mean of its divisors is an integer number (18074426832).

Almost surely, 2^120420100145 is an apocalyptic number.

It is an amenable number.

120420100145 is a deficient number, since it is larger than the sum of its proper divisors (24175314511).

120420100145 is a wasteful number, since it uses less digits than its factorization.

120420100145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15215751.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 120420100145 its reverse (541001024021), we get a palindrome (661421124166).

The spelling of 120420100145 in words is "one hundred twenty billion, four hundred twenty million, one hundred thousand, one hundred forty-five".