1211230443 has 8 divisors (see below), whose sum is σ = 1670662800. Its totient is φ = 779642528.

The previous prime is 1211230441. The next prime is 1211230451. The reversal of 1211230443 is 3440321121.

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 1211230443 - 2¹ = 1211230441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1211230441) 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, 6961008 + ... + 6961181.

It is an arithmetic number, because the mean of its divisors is an integer number (208832850).

Almost surely, 2^1211230443 is an apocalyptic number.

1211230443 is a deficient number, since it is larger than the sum of its proper divisors (459432357).

1211230443 is a wasteful number, since it uses less digits than its factorization.

1211230443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13922221.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1211230443 is about 34802.7361424357. The cubic root of 1211230443 is about 1065.9633162778.

Adding to 1211230443 its reverse (3440321121), we get a palindrome (4651551564).

The spelling of 1211230443 in words is "one billion, two hundred eleven million, two hundred thirty thousand, four hundred forty-three".