1131310231211 has 8 divisors (see below), whose sum is σ = 1180578460320. Its totient is φ = 1082048737792.

The previous prime is 1131310231199. The next prime is 1131310231301. The reversal of 1131310231211 is 1121320131311.

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 1131310231211 - 2³⁴ = 1114130362027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131310231811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1339190 + ... + 2013963.

It is an arithmetic number, because the mean of its divisors is an integer number (147572307540).

Almost surely, 2^{1131310231211} is an apocalyptic number.

1131310231211 is a deficient number, since it is larger than the sum of its proper divisors (49268229109).

1131310231211 is a wasteful number, since it uses less digits than its factorization.

1131310231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367845.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1131310231211 its reverse (1121320131311), we get a palindrome (2252630362522).

The spelling of 1131310231211 in words is "one trillion, one hundred thirty-one billion, three hundred ten million, two hundred thirty-one thousand, two hundred eleven".