11097238913 has 2 divisors, whose sum is σ = 11097238914. Its totient is φ = 11097238912.

The previous prime is 11097238909. The next prime is 11097238921. The reversal of 11097238913 is 31983279011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8126661904 + 2970577009 = 90148^2 + 54503^2 .

It is a cyclic number.

It is not a de Polignac number, because 11097238913 - 2² = 11097238909 is a prime.

It is a super-2 number, since 2×11097238913² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11097238963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5548619456 + 5548619457.

It is an arithmetic number, because the mean of its divisors is an integer number (5548619457).

Almost surely, 2^11097238913 is an apocalyptic number.

It is an amenable number.

11097238913 is a deficient number, since it is larger than the sum of its proper divisors (1).

11097238913 is an equidigital number, since it uses as much as digits as its factorization.

11097238913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 11097238913 in words is "eleven billion, ninety-seven million, two hundred thirty-eight thousand, nine hundred thirteen".