11368121213 has 2 divisors, whose sum is σ = 11368121214. Its totient is φ = 11368121212.

The previous prime is 11368121201. The next prime is 11368121257. The reversal of 11368121213 is 31212186311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5977918489 + 5390202724 = 77317^2 + 73418^2 .

It is a cyclic number.

It is not a de Polignac number, because 11368121213 - 2¹⁰ = 11368120189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11368121263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5684060606 + 5684060607.

It is an arithmetic number, because the mean of its divisors is an integer number (5684060607).

Almost surely, 2^11368121213 is an apocalyptic number.

It is an amenable number.

11368121213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11368121213 is an equidigital number, since it uses as much as digits as its factorization.

11368121213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The spelling of 11368121213 in words is "eleven billion, three hundred sixty-eight million, one hundred twenty-one thousand, two hundred thirteen".