11320131397 has 2 divisors, whose sum is σ = 11320131398. Its totient is φ = 11320131396.

The previous prime is 11320131323. The next prime is 11320131419. The reversal of 11320131397 is 79313102311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11285662756 + 34468641 = 106234^2 + 5871^2 .

It is a cyclic number.

It is not a de Polignac number, because 11320131397 - 2⁷ = 11320131269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11320131197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660065698 + 5660065699.

It is an arithmetic number, because the mean of its divisors is an integer number (5660065699).

Almost surely, 2^11320131397 is an apocalyptic number.

It is an amenable number.

11320131397 is a deficient number, since it is larger than the sum of its proper divisors (1).

11320131397 is an equidigital number, since it uses as much as digits as its factorization.

11320131397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 31.

The spelling of 11320131397 in words is "eleven billion, three hundred twenty million, one hundred thirty-one thousand, three hundred ninety-seven".