1135511115197 has 2 divisors, whose sum is σ = 1135511115198. Its totient is φ = 1135511115196.

The previous prime is 1135511115127. The next prime is 1135511115239. The reversal of 1135511115197 is 7915111155311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 746476992121 + 389034123076 = 863989^2 + 623726^2 .

It is a cyclic number.

It is not a de Polignac number, because 1135511115197 - 2¹⁰ = 1135511114173 is a prime.

It is a super-3 number, since 3×1135511115197³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135511115127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567755557598 + 567755557599.

It is an arithmetic number, because the mean of its divisors is an integer number (567755557599).

Almost surely, 2^{1135511115197} is an apocalyptic number.

It is an amenable number.

1135511115197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135511115197 is an equidigital number, since it uses as much as digits as its factorization.

1135511115197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23625, while the sum is 41.

The spelling of 1135511115197 in words is "one trillion, one hundred thirty-five billion, five hundred eleven million, one hundred fifteen thousand, one hundred ninety-seven".