1223420103423 has 12 divisors (see below), whose sum is σ = 2019614139088. Its totient is φ = 699097201920.

The previous prime is 1223420103419. The next prime is 1223420103469. The reversal of 1223420103423 is 3243010243221.

1223420103423 is a `hidden beast` number, since 1 + 2 + 2 + 34 + 201 + 0 + 3 + 423 = 666.

It is not a de Polignac number, because 1223420103423 - 2² = 1223420103419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223420103403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9709683298 + ... + 9709683423.

Almost surely, 2^{1223420103423} is an apocalyptic number.

1223420103423 is a deficient number, since it is larger than the sum of its proper divisors (796194035665).

1223420103423 is a wasteful number, since it uses less digits than its factorization.

1223420103423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19419366734 (or 19419366731 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1223420103423 its reverse (3243010243221), we get a palindrome (4466430346644).

The spelling of 1223420103423 in words is "one trillion, two hundred twenty-three billion, four hundred twenty million, one hundred three thousand, four hundred twenty-three".