1340204302223 has 2 divisors, whose sum is σ = 1340204302224. Its totient is φ = 1340204302222.

The previous prime is 1340204302207. The next prime is 1340204302249. The reversal of 1340204302223 is 3222034020431.

It is an a-pointer prime, because the next prime (1340204302249) can be obtained adding 1340204302223 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1340204302223 - 2⁴ = 1340204302207 is a prime.

It is a super-2 number, since 2×1340204302223² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1340204302192 and 1340204302201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340204302273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670102151111 + 670102151112.

It is an arithmetic number, because the mean of its divisors is an integer number (670102151112).

Almost surely, 2^{1340204302223} is an apocalyptic number.

1340204302223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340204302223 is an equidigital number, since it uses as much as digits as its factorization.

1340204302223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 1340204302223 its reverse (3222034020431), we get a palindrome (4562238322654).

The spelling of 1340204302223 in words is "one trillion, three hundred forty billion, two hundred four million, three hundred two thousand, two hundred twenty-three".