1313130221357 has 2 divisors, whose sum is σ = 1313130221358. Its totient is φ = 1313130221356.

The previous prime is 1313130221329. The next prime is 1313130221413. The reversal of 1313130221357 is 7531220313131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1163526811561 + 149603409796 = 1078669^2 + 386786^2 .

It is an emirp because it is prime and its reverse (7531220313131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1313130221357 - 2¹² = 1313130217261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313130221057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656565110678 + 656565110679.

It is an arithmetic number, because the mean of its divisors is an integer number (656565110679).

Almost surely, 2^{1313130221357} is an apocalyptic number.

It is an amenable number.

1313130221357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313130221357 is an equidigital number, since it uses as much as digits as its factorization.

1313130221357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

Adding to 1313130221357 its reverse (7531220313131), we get a palindrome (8844350534488).

The spelling of 1313130221357 in words is "one trillion, three hundred thirteen billion, one hundred thirty million, two hundred twenty-one thousand, three hundred fifty-seven".