11131120097 has 2 divisors, whose sum is σ = 11131120098. Its totient is φ = 11131120096.

The previous prime is 11131120079. The next prime is 11131120111. The reversal of 11131120097 is 79002113111.

Together with previous prime (11131120079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11114219776 + 16900321 = 105424^2 + 4111^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131120097 - 2¹⁰ = 11131119073 is a prime.

It is a super-2 number, since 2×11131120097² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11131120057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565560048 + 5565560049.

It is an arithmetic number, because the mean of its divisors is an integer number (5565560049).

Almost surely, 2^11131120097 is an apocalyptic number.

It is an amenable number.

11131120097 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131120097 is an equidigital number, since it uses as much as digits as its factorization.

11131120097 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 11131120097 in words is "eleven billion, one hundred thirty-one million, one hundred twenty thousand, ninety-seven".