1113213449 has 2 divisors, whose sum is σ = 1113213450. Its totient is φ = 1113213448.

The previous prime is 1113213443. The next prime is 1113213467. The reversal of 1113213449 is 9443123111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 691321849 + 421891600 = 26293^2 + 20540^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113213449 - 2⁴ = 1113213433 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113213443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556606724 + 556606725.

It is an arithmetic number, because the mean of its divisors is an integer number (556606725).

Almost surely, 2^1113213449 is an apocalyptic number.

It is an amenable number.

1113213449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113213449 is an equidigital number, since it uses as much as digits as its factorization.

1113213449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 1113213449 is about 33364.8534988541. The cubic root of 1113213449 is about 1036.3970023438.

The spelling of 1113213449 in words is "one billion, one hundred thirteen million, two hundred thirteen thousand, four hundred forty-nine".