1223000100203 has 16 divisors (see below), whose sum is σ = 1398982024704. Its totient is φ = 1047335477760.

The previous prime is 1223000100199. The next prime is 1223000100359. The reversal of 1223000100203 is 3020010003221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1223000100203 - 2² = 1223000100199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223000100703) 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, 44528651 + ... + 44556107.

It is an arithmetic number, because the mean of its divisors is an integer number (87436376544).

Almost surely, 2^{1223000100203} is an apocalyptic number.

1223000100203 is a deficient number, since it is larger than the sum of its proper divisors (175981924501).

1223000100203 is a wasteful number, since it uses less digits than its factorization.

1223000100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33002.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1223000100203 its reverse (3020010003221), we get a palindrome (4243010103424).

The spelling of 1223000100203 in words is "one trillion, two hundred twenty-three billion, one hundred thousand, two hundred three".