1223100231233 has 2 divisors, whose sum is σ = 1223100231234. Its totient is φ = 1223100231232.

The previous prime is 1223100231193. The next prime is 1223100231257. The reversal of 1223100231233 is 3321320013221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1218800544049 + 4299687184 = 1103993^2 + 65572^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223100231233 - 2⁶ = 1223100231169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223100231199 and 1223100231208.

It is not a weakly prime, because it can be changed into another prime (1223100233233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611550115616 + 611550115617.

It is an arithmetic number, because the mean of its divisors is an integer number (611550115617).

Almost surely, 2^{1223100231233} is an apocalyptic number.

It is an amenable number.

1223100231233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223100231233 is an equidigital number, since it uses as much as digits as its factorization.

1223100231233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1223100231233 its reverse (3321320013221), we get a palindrome (4544420244454).

The spelling of 1223100231233 in words is "one trillion, two hundred twenty-three billion, one hundred million, two hundred thirty-one thousand, two hundred thirty-three".