1131001199969 has 2 divisors, whose sum is σ = 1131001199970. Its totient is φ = 1131001199968.

The previous prime is 1131001199959. The next prime is 1131001200041. The reversal of 1131001199969 is 9699911001311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 660318760000 + 470682439969 = 812600^2 + 686063^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131001199969 - 2⁴ = 1131001199953 is a prime.

It is a super-2 number, since 2×1131001199969² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1131001199929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565500599984 + 565500599985.

It is an arithmetic number, because the mean of its divisors is an integer number (565500599985).

Almost surely, 2^{1131001199969} is an apocalyptic number.

It is an amenable number.

1131001199969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131001199969 is an equidigital number, since it uses as much as digits as its factorization.

1131001199969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098, while the sum is 50.

The spelling of 1131001199969 in words is "one trillion, one hundred thirty-one billion, one million, one hundred ninety-nine thousand, nine hundred sixty-nine".