120311311 has 8 divisors (see below), whose sum is σ = 121564800. Its totient is φ = 119063640.

The previous prime is 120311273. The next prime is 120311351. The reversal of 120311311 is 113113021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120311311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120311291 and 120311300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120311351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48696 + ... + 51106.

It is an arithmetic number, because the mean of its divisors is an integer number (15195600).

Almost surely, 2^120311311 is an apocalyptic number.

120311311 is a deficient number, since it is larger than the sum of its proper divisors (1253489).

120311311 is a wasteful number, since it uses less digits than its factorization.

120311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 120311311 is about 10968.6512844561. The cubic root of 120311311 is about 493.6685792998.

Adding to 120311311 its reverse (113113021), we get a palindrome (233424332).

The spelling of 120311311 in words is "one hundred twenty million, three hundred eleven thousand, three hundred eleven".