1162123211 has 2 divisors, whose sum is σ = 1162123212. Its totient is φ = 1162123210.

The previous prime is 1162123199. The next prime is 1162123217. The reversal of 1162123211 is 1123212611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1162123211 - 2¹⁸ = 1161861067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1162123217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581061605 + 581061606.

It is an arithmetic number, because the mean of its divisors is an integer number (581061606).

Almost surely, 2^1162123211 is an apocalyptic number.

1162123211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162123211 is an equidigital number, since it uses as much as digits as its factorization.

1162123211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 20.

The square root of 1162123211 is about 34089.9282926791. The cubic root of 1162123211 is about 1051.3582455862.

Adding to 1162123211 its reverse (1123212611), we get a palindrome (2285335822).

The spelling of 1162123211 in words is "one billion, one hundred sixty-two million, one hundred twenty-three thousand, two hundred eleven".