1131023100211 has 4 divisors (see below), whose sum is σ = 1170023896800. Its totient is φ = 1092022303624.

The previous prime is 1131023100173. The next prime is 1131023100329. The reversal of 1131023100211 is 1120013201311.

It is a happy number.

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 1131023100211 - 2¹⁵ = 1131023067443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131023100511) 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, 19500398251 + ... + 19500398308.

It is an arithmetic number, because the mean of its divisors is an integer number (292505974200).

Almost surely, 2^{1131023100211} is an apocalyptic number.

1131023100211 is a deficient number, since it is larger than the sum of its proper divisors (39000796589).

1131023100211 is an equidigital number, since it uses as much as digits as its factorization.

1131023100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39000796588.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1131023100211 its reverse (1120013201311), we get a palindrome (2251036301522).

The spelling of 1131023100211 in words is "one trillion, one hundred thirty-one billion, twenty-three million, one hundred thousand, two hundred eleven".