12111010020611 has 2 divisors, whose sum is σ = 12111010020612. Its totient is φ = 12111010020610.

The previous prime is 12111010020553. The next prime is 12111010020773. The reversal of 12111010020611 is 11602001011121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12111010020611 - 2¹⁰ = 12111010019587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12111010020611.

It is not a weakly prime, because it can be changed into another prime (12111016020611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055505010305 + 6055505010306.

It is an arithmetic number, because the mean of its divisors is an integer number (6055505010306).

Almost surely, 2^{12111010020611} is an apocalyptic number.

12111010020611 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111010020611 is an equidigital number, since it uses as much as digits as its factorization.

12111010020611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 12111010020611 its reverse (11602001011121), we get a palindrome (23713011031732).

The spelling of 12111010020611 in words is "twelve trillion, one hundred eleven billion, ten million, twenty thousand, six hundred eleven".