11131231297 has 2 divisors, whose sum is σ = 11131231298. Its totient is φ = 11131231296.

The previous prime is 11131231291. The next prime is 11131231303. The reversal of 11131231297 is 79213213111.

It is a balanced prime because it is at equal distance from previous prime (11131231291) and next prime (11131231303).

It can be written as a sum of positive squares in only one way, i.e., 9682363201 + 1448868096 = 98399^2 + 38064^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131231297 - 2²⁷ = 10997013569 is a prime.

It is not a weakly prime, because it can be changed into another prime (11131231291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565615648 + 5565615649.

It is an arithmetic number, because the mean of its divisors is an integer number (5565615649).

Almost surely, 2^11131231297 is an apocalyptic number.

It is an amenable number.

11131231297 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131231297 is an equidigital number, since it uses as much as digits as its factorization.

11131231297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 31.

The spelling of 11131231297 in words is "eleven billion, one hundred thirty-one million, two hundred thirty-one thousand, two hundred ninety-seven".