1313212057 has 2 divisors, whose sum is σ = 1313212058. Its totient is φ = 1313212056.

The previous prime is 1313212027. The next prime is 1313212067. The reversal of 1313212057 is 7502123131.

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., 1203465481 + 109746576 = 34691^2 + 10476^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313212057 - 2¹¹ = 1313210009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313212027) 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, 656606028 + 656606029.

It is an arithmetic number, because the mean of its divisors is an integer number (656606029).

Almost surely, 2^1313212057 is an apocalyptic number.

It is an amenable number.

1313212057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313212057 is an equidigital number, since it uses as much as digits as its factorization.

1313212057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1313212057 is about 36238.2678531963. The cubic root of 1313212057 is about 1095.0777470981.

Adding to 1313212057 its reverse (7502123131), we get a palindrome (8815335188).

The spelling of 1313212057 in words is "one billion, three hundred thirteen million, two hundred twelve thousand, fifty-seven".