1243100011223 has 16 divisors (see below), whose sum is σ = 1453454306304. Its totient is φ = 1041017274720.

The previous prime is 1243100011217. The next prime is 1243100011289. The reversal of 1243100011223 is 3221100013421.

It is a cyclic number.

It is not a de Polignac number, because 1243100011223 - 2⁶ = 1243100011159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1243100011195 and 1243100011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243100010223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3120740 + ... + 3496457.

It is an arithmetic number, because the mean of its divisors is an integer number (90840894144).

Almost surely, 2^{1243100011223} is an apocalyptic number.

1243100011223 is a deficient number, since it is larger than the sum of its proper divisors (210354295081).

1243100011223 is an equidigital number, since it uses as much as digits as its factorization.

1243100011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617822.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1243100011223 its reverse (3221100013421), we get a palindrome (4464200024644).

The spelling of 1243100011223 in words is "one trillion, two hundred forty-three billion, one hundred million, eleven thousand, two hundred twenty-three".