1131211233291 has 8 divisors (see below), whose sum is σ = 1508508378000. Its totient is φ = 754027455392.

The previous prime is 1131211233283. The next prime is 1131211233293. The reversal of 1131211233291 is 1923321121311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131211233291 - 2³ = 1131211233283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131211233293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28318416 + ... + 28358333.

It is an arithmetic number, because the mean of its divisors is an integer number (188563547250).

Almost surely, 2^{1131211233291} is an apocalyptic number.

1131211233291 is a deficient number, since it is larger than the sum of its proper divisors (377297144709).

1131211233291 is an equidigital number, since it uses as much as digits as its factorization.

1131211233291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56683405.

The product of its digits is 1944, while the sum is 30.

The spelling of 1131211233291 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, two hundred thirty-three thousand, two hundred ninety-one".