1131203309999 has 32 divisors (see below), whose sum is σ = 1305757824000. Its totient is φ = 959936832000.

The previous prime is 1131203309983. The next prime is 1131203310103. The reversal of 1131203309999 is 9999033021311.

It is a cyclic number.

It is not a de Polignac number, because 1131203309999 - 2⁴ = 1131203309983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131203309939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 728398007 + ... + 728399559.

It is an arithmetic number, because the mean of its divisors is an integer number (40804932000).

Almost surely, 2^{1131203309999} is an apocalyptic number.

1131203309999 is a deficient number, since it is larger than the sum of its proper divisors (174554514001).

1131203309999 is a wasteful number, since it uses less digits than its factorization.

1131203309999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591.

The product of its (nonzero) digits is 354294, while the sum is 50.

The spelling of 1131203309999 in words is "one trillion, one hundred thirty-one billion, two hundred three million, three hundred nine thousand, nine hundred ninety-nine".