1123402213 has 2 divisors, whose sum is σ = 1123402214. Its totient is φ = 1123402212.

The previous prime is 1123402201. The next prime is 1123402223. The reversal of 1123402213 is 3122043211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 612958564 + 510443649 = 24758^2 + 22593^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123402213 - 2²⁹ = 586531301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123402223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561701106 + 561701107.

It is an arithmetic number, because the mean of its divisors is an integer number (561701107).

Almost surely, 2^1123402213 is an apocalyptic number.

It is an amenable number.

1123402213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123402213 is an equidigital number, since it uses as much as digits as its factorization.

1123402213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1123402213 is about 33517.1927971303. The cubic root of 1123402213 is about 1039.5493032956.

Adding to 1123402213 its reverse (3122043211), we get a palindrome (4245445424).

The spelling of 1123402213 in words is "one billion, one hundred twenty-three million, four hundred two thousand, two hundred thirteen".