1131102213 has 4 divisors (see below), whose sum is σ = 1508136288. Its totient is φ = 754068140.

The previous prime is 1131102209. The next prime is 1131102221. The reversal of 1131102213 is 3122011311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1131102213 - 2² = 1131102209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131102192 and 1131102201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131102263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188517033 + ... + 188517038.

It is an arithmetic number, because the mean of its divisors is an integer number (377034072).

Almost surely, 2^1131102213 is an apocalyptic number.

It is an amenable number.

1131102213 is a deficient number, since it is larger than the sum of its proper divisors (377034075).

1131102213 is an equidigital number, since it uses as much as digits as its factorization.

1131102213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377034074.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1131102213 is about 33631.8630616860. The cubic root of 1131102213 is about 1041.9189831560.

Adding to 1131102213 its reverse (3122011311), we get a palindrome (4253113524).

The spelling of 1131102213 in words is "one billion, one hundred thirty-one million, one hundred two thousand, two hundred thirteen".