1211210323 has 2 divisors, whose sum is σ = 1211210324. Its totient is φ = 1211210322.

The previous prime is 1211210267. The next prime is 1211210359. The reversal of 1211210323 is 3230121121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211210323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211210297 and 1211210306.

It is not a weakly prime, because it can be changed into another prime (1211220323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605605161 + 605605162.

It is an arithmetic number, because the mean of its divisors is an integer number (605605162).

Almost surely, 2^1211210323 is an apocalyptic number.

1211210323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211210323 is an equidigital number, since it uses as much as digits as its factorization.

1211210323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1211210323 is about 34802.4470835026. The cubic root of 1211210323 is about 1065.9574139326.

Adding to 1211210323 its reverse (3230121121), we get a palindrome (4441331444).

The spelling of 1211210323 in words is "one billion, two hundred eleven million, two hundred ten thousand, three hundred twenty-three".