1131013312211 has 4 divisors (see below), whose sum is σ = 1131019430424. Its totient is φ = 1131007194000.

The previous prime is 1131013312193. The next prime is 1131013312223. The reversal of 1131013312211 is 1122133101311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1131013312211 - 2³⁰ = 1129939570387 is a prime.

It is a super-2 number, since 2×1131013312211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131013312271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2772890 + ... + 3154511.

It is an arithmetic number, because the mean of its divisors is an integer number (282754857606).

Almost surely, 2^{1131013312211} is an apocalyptic number.

1131013312211 is a deficient number, since it is larger than the sum of its proper divisors (6118213).

1131013312211 is an equidigital number, since it uses as much as digits as its factorization.

1131013312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6118212.

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

Adding to 1131013312211 its reverse (1122133101311), we get a palindrome (2253146413522).

The spelling of 1131013312211 in words is "one trillion, one hundred thirty-one billion, thirteen million, three hundred twelve thousand, two hundred eleven".