1223203112197 has 4 divisors (see below), whose sum is σ = 1334403395136. Its totient is φ = 1112002829260.

The previous prime is 1223203112107. The next prime is 1223203112237. The reversal of 1223203112197 is 7912113023221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223203112197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223203112107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55600141453 + ... + 55600141474.

It is an arithmetic number, because the mean of its divisors is an integer number (333600848784).

Almost surely, 2^{1223203112197} is an apocalyptic number.

It is an amenable number.

1223203112197 is a deficient number, since it is larger than the sum of its proper divisors (111200282939).

1223203112197 is a wasteful number, since it uses less digits than its factorization.

1223203112197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111200282938.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 1223203112197 in words is "one trillion, two hundred twenty-three billion, two hundred three million, one hundred twelve thousand, one hundred ninety-seven".