11311601297 has 2 divisors, whose sum is σ = 11311601298. Its totient is φ = 11311601296.

The previous prime is 11311601243. The next prime is 11311601311. The reversal of 11311601297 is 79210611311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9235978816 + 2075622481 = 96104^2 + 45559^2 .

It is a cyclic number.

It is not a de Polignac number, because 11311601297 - 2¹² = 11311597201 is a prime.

It is not a weakly prime, because it can be changed into another prime (11311651297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655800648 + 5655800649.

It is an arithmetic number, because the mean of its divisors is an integer number (5655800649).

Almost surely, 2^11311601297 is an apocalyptic number.

It is an amenable number.

11311601297 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311601297 is an equidigital number, since it uses as much as digits as its factorization.

11311601297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 32.

The spelling of 11311601297 in words is "eleven billion, three hundred eleven million, six hundred one thousand, two hundred ninety-seven".