1201105826797 has 2 divisors, whose sum is σ = 1201105826798. Its totient is φ = 1201105826796.

The previous prime is 1201105826783. The next prime is 1201105826803. The reversal of 1201105826797 is 7976285011021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1183354528041 + 17751298756 = 1087821^2 + 133234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201105826797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201105826797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201105826777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600552913398 + 600552913399.

It is an arithmetic number, because the mean of its divisors is an integer number (600552913399).

Almost surely, 2^{1201105826797} is an apocalyptic number.

It is an amenable number.

1201105826797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201105826797 is an equidigital number, since it uses as much as digits as its factorization.

1201105826797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 49.

The spelling of 1201105826797 in words is "one trillion, two hundred one billion, one hundred five million, eight hundred twenty-six thousand, seven hundred ninety-seven".