120103311 has 4 divisors (see below), whose sum is σ = 160137752. Its totient is φ = 80068872.

The previous prime is 120103307. The next prime is 120103339. The reversal of 120103311 is 113301021.

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

It is not a de Polignac number, because 120103311 - 2² = 120103307 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 (120103111) 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 3 ways as a sum of consecutive naturals, for example, 20017216 + ... + 20017221.

It is an arithmetic number, because the mean of its divisors is an integer number (40034438).

Almost surely, 2^120103311 is an apocalyptic number.

120103311 is a deficient number, since it is larger than the sum of its proper divisors (40034441).

120103311 is an equidigital number, since it uses as much as digits as its factorization.

120103311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40034440.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 120103311 is about 10959.1656160494. The cubic root of 120103311 is about 493.3839225067.

Adding to 120103311 its reverse (113301021), we get a palindrome (233404332).

The spelling of 120103311 in words is "one hundred twenty million, one hundred three thousand, three hundred eleven".