1200230111 has 8 divisors (see below), whose sum is σ = 1210151040. Its totient is φ = 1190327832.

The previous prime is 1200230099. The next prime is 1200230123. The reversal of 1200230111 is 1110320021.

It is an interprime number because it is at equal distance from previous prime (1200230099) and next prime (1200230123).

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

It is a cyclic number.

It is not a de Polignac number, because 1200230111 - 2¹⁴ = 1200213727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200230092 and 1200230101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200230191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143696 + ... + 151818.

It is an arithmetic number, because the mean of its divisors is an integer number (151268880).

Almost surely, 2^1200230111 is an apocalyptic number.

1200230111 is a deficient number, since it is larger than the sum of its proper divisors (9920929).

1200230111 is a wasteful number, since it uses less digits than its factorization.

1200230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9325.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1200230111 is about 34644.3373583620. The cubic root of 1200230111 is about 1062.7264896819.

Adding to 1200230111 its reverse (1110320021), we get a palindrome (2310550132).

The spelling of 1200230111 in words is "one billion, two hundred million, two hundred thirty thousand, one hundred eleven".