1131031311199 has 2 divisors, whose sum is σ = 1131031311200. Its totient is φ = 1131031311198.

The previous prime is 1131031311197. The next prime is 1131031311227. The reversal of 1131031311199 is 9911131301311.

It is a weak prime.

It is an emirp because it is prime and its reverse (9911131301311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131031311199 - 2¹ = 1131031311197 is a prime.

Together with 1131031311197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131031311191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565515655599 + 565515655600.

It is an arithmetic number, because the mean of its divisors is an integer number (565515655600).

Almost surely, 2^{1131031311199} is an apocalyptic number.

1131031311199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131031311199 is an equidigital number, since it uses as much as digits as its factorization.

1131031311199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187, while the sum is 34.

The spelling of 1131031311199 in words is "one trillion, one hundred thirty-one billion, thirty-one million, three hundred eleven thousand, one hundred ninety-nine".