120663311 has 4 divisors (see below), whose sum is σ = 120720192. Its totient is φ = 120606432.

The previous prime is 120663239. The next prime is 120663337. The reversal of 120663311 is 113366021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120663311 - 2¹⁰ = 120662287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120663391) 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, 25130 + ... + 29543.

It is an arithmetic number, because the mean of its divisors is an integer number (30180048).

Almost surely, 2^120663311 is an apocalyptic number.

120663311 is a deficient number, since it is larger than the sum of its proper divisors (56881).

120663311 is an equidigital number, since it uses as much as digits as its factorization.

120663311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56880.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 120663311 is about 10984.6852936258. The cubic root of 120663311 is about 494.1495596922.

The spelling of 120663311 in words is "one hundred twenty million, six hundred sixty-three thousand, three hundred eleven".