1131243233211 has 48 divisors (see below), whose sum is σ = 2060150339520. Its totient is φ = 582146058240.

The previous prime is 1131243233209. The next prime is 1131243233213. The reversal of 1131243233211 is 1123323421311.

1131243233211 is a `hidden beast` number, since 1 + 1 + 3 + 12 + 4 + 323 + 321 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1131243233209) and next prime (1131243233213).

It is not a de Polignac number, because 1131243233211 - 2¹ = 1131243233209 is a prime.

It is a super-2 number, since 2×1131243233211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131243233213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16810926 + ... + 16878083.

It is an arithmetic number, because the mean of its divisors is an integer number (42919798740).

Almost surely, 2^{1131243233211} is an apocalyptic number.

1131243233211 is a deficient number, since it is larger than the sum of its proper divisors (928907106309).

1131243233211 is a wasteful number, since it uses less digits than its factorization.

1131243233211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33689076 (or 33689073 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 1131243233211 its reverse (1123323421311), we get a palindrome (2254566654522).

The spelling of 1131243233211 in words is "one trillion, one hundred thirty-one billion, two hundred forty-three million, two hundred thirty-three thousand, two hundred eleven".