1223340126347 has 2 divisors, whose sum is σ = 1223340126348. Its totient is φ = 1223340126346.

The previous prime is 1223340126343. The next prime is 1223340126409. The reversal of 1223340126347 is 7436210433221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223340126347 - 2² = 1223340126343 is a prime.

It is a super-2 number, since 2×1223340126347² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1223340126347.

It is not a weakly prime, because it can be changed into another prime (1223340126343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611670063173 + 611670063174.

It is an arithmetic number, because the mean of its divisors is an integer number (611670063174).

Almost surely, 2^{1223340126347} is an apocalyptic number.

1223340126347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223340126347 is an equidigital number, since it uses as much as digits as its factorization.

1223340126347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 38.

Adding to 1223340126347 its reverse (7436210433221), we get a palindrome (8659550559568).

The spelling of 1223340126347 in words is "one trillion, two hundred twenty-three billion, three hundred forty million, one hundred twenty-six thousand, three hundred forty-seven".