1131706223 has 2 divisors, whose sum is σ = 1131706224. Its totient is φ = 1131706222.

The previous prime is 1131706211. The next prime is 1131706273. The reversal of 1131706223 is 3226071311.

It is a weak prime.

It is an emirp because it is prime and its reverse (3226071311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131706223 - 2²² = 1127511919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131706192 and 1131706201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131706273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565853111 + 565853112.

It is an arithmetic number, because the mean of its divisors is an integer number (565853112).

Almost surely, 2^1131706223 is an apocalyptic number.

1131706223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131706223 is an equidigital number, since it uses as much as digits as its factorization.

1131706223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1131706223 is about 33640.8415917319. The cubic root of 1131706223 is about 1042.1044121680.

Adding to 1131706223 its reverse (3226071311), we get a palindrome (4357777534).

The spelling of 1131706223 in words is "one billion, one hundred thirty-one million, seven hundred six thousand, two hundred twenty-three".