1213333120357 has 2 divisors, whose sum is σ = 1213333120358. Its totient is φ = 1213333120356.

The previous prime is 1213333120343. The next prime is 1213333120457. The reversal of 1213333120357 is 7530213333121.

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., 1040238846241 + 173094274116 = 1019921^2 + 416046^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213333120357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213333120327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606666560178 + 606666560179.

It is an arithmetic number, because the mean of its divisors is an integer number (606666560179).

Almost surely, 2^{1213333120357} is an apocalyptic number.

It is an amenable number.

1213333120357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213333120357 is an equidigital number, since it uses as much as digits as its factorization.

1213333120357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 34.

Adding to 1213333120357 its reverse (7530213333121), we get a palindrome (8743546453478).

The spelling of 1213333120357 in words is "one trillion, two hundred thirteen billion, three hundred thirty-three million, one hundred twenty thousand, three hundred fifty-seven".