120342311 has 4 divisors (see below), whose sum is σ = 120364272. Its totient is φ = 120320352.

The previous prime is 120342301. The next prime is 120342317. The reversal of 120342311 is 113243021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 113243021 = 19 ⋅5960159.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120342311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120342311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120342317) 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, 4790 + ... + 16236.

It is an arithmetic number, because the mean of its divisors is an integer number (30091068).

Almost surely, 2^120342311 is an apocalyptic number.

120342311 is a deficient number, since it is larger than the sum of its proper divisors (21961).

120342311 is a wasteful number, since it uses less digits than its factorization.

120342311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21960.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 120342311 is about 10970.0643115708. The cubic root of 120342311 is about 493.7109760110.

Adding to 120342311 its reverse (113243021), we get a palindrome (233585332).

The spelling of 120342311 in words is "one hundred twenty million, three hundred forty-two thousand, three hundred eleven".