120780213 has 4 divisors (see below), whose sum is σ = 161040288. Its totient is φ = 80520140.

The previous prime is 120780203. The next prime is 120780217. The reversal of 120780213 is 312087021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120780213 - 2¹⁶ = 120714677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120780217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20130033 + ... + 20130038.

It is an arithmetic number, because the mean of its divisors is an integer number (40260072).

Almost surely, 2^120780213 is an apocalyptic number.

It is an amenable number.

120780213 is a deficient number, since it is larger than the sum of its proper divisors (40260075).

120780213 is an equidigital number, since it uses as much as digits as its factorization.

120780213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40260074.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 120780213 is about 10990.0051410361. The cubic root of 120780213 is about 494.3090901684.

The spelling of 120780213 in words is "one hundred twenty million, seven hundred eighty thousand, two hundred thirteen".