1101111011213 has 2 divisors, whose sum is σ = 1101111011214. Its totient is φ = 1101111011212.

The previous prime is 1101111011171. The next prime is 1101111011227. The reversal of 1101111011213 is 3121101111011.

It is an a-pointer prime, because the next prime (1101111011227) can be obtained adding 1101111011213 to its sum of digits (14).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 564762771049 + 536348240164 = 751507^2 + 732358^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101111011213 - 2⁶ = 1101111011149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101111011233) by changing a digit.

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, 550555505606 + 550555505607.

It is an arithmetic number, because the mean of its divisors is an integer number (550555505607).

Almost surely, 2^{1101111011213} is an apocalyptic number.

It is an amenable number.

1101111011213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101111011213 is an equidigital number, since it uses as much as digits as its factorization.

1101111011213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 1101111011213 its reverse (3121101111011), we get a palindrome (4222212122224).

The spelling of 1101111011213 in words is "one trillion, one hundred one billion, one hundred eleven million, eleven thousand, two hundred thirteen".