12110001011 has 2 divisors, whose sum is σ = 12110001012. Its totient is φ = 12110001010.

The previous prime is 12110000993. The next prime is 12110001031. The reversal of 12110001011 is 11010001121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12110001011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12110001011.

It is not a weakly prime, because it can be changed into another prime (12110001031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055000505 + 6055000506.

It is an arithmetic number, because the mean of its divisors is an integer number (6055000506).

Almost surely, 2^12110001011 is an apocalyptic number.

12110001011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110001011 is an equidigital number, since it uses as much as digits as its factorization.

12110001011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 12110001011 its reverse (11010001121), we get a palindrome (23120002132).

The spelling of 12110001011 in words is "twelve billion, one hundred ten million, one thousand, eleven".