1213044241 has 2 divisors, whose sum is σ = 1213044242. Its totient is φ = 1213044240.

The previous prime is 1213044193. The next prime is 1213044251. The reversal of 1213044241 is 1424403121.

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., 1150634241 + 62410000 = 33921^2 + 7900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213044241 - 2⁹ = 1213043729 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213044251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606522120 + 606522121.

It is an arithmetic number, because the mean of its divisors is an integer number (606522121).

Almost surely, 2^1213044241 is an apocalyptic number.

It is an amenable number.

1213044241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213044241 is an equidigital number, since it uses as much as digits as its factorization.

1213044241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1213044241 is about 34828.7846615411. The cubic root of 1213044241 is about 1066.4951385100.

Adding to 1213044241 its reverse (1424403121), we get a palindrome (2637447362).

The spelling of 1213044241 in words is "one billion, two hundred thirteen million, forty-four thousand, two hundred forty-one".