1211430466 has 8 divisors (see below), whose sum is σ = 1827185724. Its totient is φ = 602368560.

The previous prime is 1211430457. The next prime is 1211430497. The reversal of 1211430466 is 6640341121.

It can be written as a sum of positive squares in 2 ways, for example, as 1041675625 + 169754841 = 32275^2 + 13029^2 .

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

It is a super-3 number, since 3×1211430466³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1672885 + ... + 1673608.

Almost surely, 2^1211430466 is an apocalyptic number.

1211430466 is a deficient number, since it is larger than the sum of its proper divisors (615755258).

1211430466 is a wasteful number, since it uses less digits than its factorization.

1211430466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346676.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1211430466 is about 34805.6096915425. The cubic root of 1211430466 is about 1066.0219908941.

Adding to 1211430466 its reverse (6640341121), we get a palindrome (7851771587).

The spelling of 1211430466 in words is "one billion, two hundred eleven million, four hundred thirty thousand, four hundred sixty-six".