1232213089 has 2 divisors, whose sum is σ = 1232213090. Its totient is φ = 1232213088.

The previous prime is 1232213071. The next prime is 1232213093. The reversal of 1232213089 is 9803122321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 886550625 + 345662464 = 29775^2 + 18592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232213089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1232213089.

It is not a weakly prime, because it can be changed into another prime (1232213009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616106544 + 616106545.

It is an arithmetic number, because the mean of its divisors is an integer number (616106545).

Almost surely, 2^1232213089 is an apocalyptic number.

It is an amenable number.

1232213089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232213089 is an equidigital number, since it uses as much as digits as its factorization.

1232213089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1232213089 is about 35102.8928864844. The cubic root of 1232213089 is about 1072.0834849147.

The spelling of 1232213089 in words is "one billion, two hundred thirty-two million, two hundred thirteen thousand, eighty-nine".