11011213097 has 2 divisors, whose sum is σ = 11011213098. Its totient is φ = 11011213096.

The previous prime is 11011213079. The next prime is 11011213133. The reversal of 11011213097 is 79031211011.

Together with previous prime (11011213079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10539280921 + 471932176 = 102661^2 + 21724^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011213097 - 2⁶ = 11011213033 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011213397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505606548 + 5505606549.

It is an arithmetic number, because the mean of its divisors is an integer number (5505606549).

Almost surely, 2^11011213097 is an apocalyptic number.

It is an amenable number.

11011213097 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011213097 is an equidigital number, since it uses as much as digits as its factorization.

11011213097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 26.

The spelling of 11011213097 in words is "eleven billion, eleven million, two hundred thirteen thousand, ninety-seven".