11111111211293 has 2 divisors, whose sum is σ = 11111111211294. Its totient is φ = 11111111211292.

The previous prime is 11111111211289. The next prime is 11111111211307. The reversal of 11111111211293 is 39211211111111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6482920560964 + 4628190650329 = 2546158^2 + 2151323^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111111211293 - 2² = 11111111211289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111111211223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555555605646 + 5555555605647.

It is an arithmetic number, because the mean of its divisors is an integer number (5555555605647).

Almost surely, 2^{11111111211293} is an apocalyptic number.

It is an amenable number.

11111111211293 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111111211293 is an equidigital number, since it uses as much as digits as its factorization.

11111111211293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 26.

The spelling of 11111111211293 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, two hundred eleven thousand, two hundred ninety-three".