1213141361 has 2 divisors, whose sum is σ = 1213141362. Its totient is φ = 1213141360.

The previous prime is 1213141331. The next prime is 1213141379. The reversal of 1213141361 is 1631413121.

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., 653109136 + 560032225 = 25556^2 + 23665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213141361 - 2²² = 1208947057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1213141331) 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, 606570680 + 606570681.

It is an arithmetic number, because the mean of its divisors is an integer number (606570681).

Almost surely, 2^1213141361 is an apocalyptic number.

It is an amenable number.

1213141361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213141361 is an equidigital number, since it uses as much as digits as its factorization.

1213141361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 23.

The square root of 1213141361 is about 34830.1788826874. The cubic root of 1213141361 is about 1066.5236000286.

Adding to 1213141361 its reverse (1631413121), we get a palindrome (2844554482).

The spelling of 1213141361 in words is "one billion, two hundred thirteen million, one hundred forty-one thousand, three hundred sixty-one".