120312243 has 16 divisors (see below), whose sum is σ = 178928640. Its totient is φ = 79898472.

The previous prime is 120312239. The next prime is 120312259. The reversal of 120312243 is 342213021.

It is not a de Polignac number, because 120312243 - 2² = 120312239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120312233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1371 + ... + 15572.

It is an arithmetic number, because the mean of its divisors is an integer number (11183040).

Almost surely, 2^120312243 is an apocalyptic number.

120312243 is a deficient number, since it is larger than the sum of its proper divisors (58616397).

120312243 is a wasteful number, since it uses less digits than its factorization.

120312243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17215 (or 17209 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 120312243 is about 10968.6937690866. The cubic root of 120312243 is about 493.6698540426.

Adding to 120312243 its reverse (342213021), we get a palindrome (462525264).

The spelling of 120312243 in words is "one hundred twenty million, three hundred twelve thousand, two hundred forty-three".