120213156 has 48 divisors (see below), whose sum is σ = 321157760. Its totient is φ = 34283520.

The previous prime is 120213151. The next prime is 120213179. The reversal of 120213156 is 651312021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (120213151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63666 + ... + 65526.

Almost surely, 2^120213156 is an apocalyptic number.

It is an amenable number.

120213156 is an abundant number, since it is smaller than the sum of its proper divisors (200944604).

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

120213156 is a wasteful number, since it uses less digits than its factorization.

120213156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644 (or 2642 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 120213156 is about 10964.1760292327. The cubic root of 120213156 is about 493.5342909483.

Adding to 120213156 its reverse (651312021), we get a palindrome (771525177).

The spelling of 120213156 in words is "one hundred twenty million, two hundred thirteen thousand, one hundred fifty-six".