12011016634 has 4 divisors (see below), whose sum is σ = 18016524954. Its totient is φ = 6005508316.

The previous prime is 12011016629. The next prime is 12011016643. The reversal of 12011016634 is 43661011021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8778753025 + 3232263609 = 93695^2 + 56853^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12011016599 and 12011016608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3002754157 + ... + 3002754160.

Almost surely, 2^12011016634 is an apocalyptic number.

12011016634 is a deficient number, since it is larger than the sum of its proper divisors (6005508320).

12011016634 is an equidigital number, since it uses as much as digits as its factorization.

12011016634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005508319.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 12011016634 its reverse (43661011021), we get a palindrome (55672027655).

The spelling of 12011016634 in words is "twelve billion, eleven million, sixteen thousand, six hundred thirty-four".