1223123302273 has 2 divisors, whose sum is σ = 1223123302274. Its totient is φ = 1223123302272.

The previous prime is 1223123302267. The next prime is 1223123302343. The reversal of 1223123302273 is 3722033213221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 951528064369 + 271595237904 = 975463^2 + 521148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223123302273 is a prime.

It is a super-2 number, since 2×1223123302273² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1223123302573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611561651136 + 611561651137.

It is an arithmetic number, because the mean of its divisors is an integer number (611561651137).

Almost surely, 2^{1223123302273} is an apocalyptic number.

It is an amenable number.

1223123302273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223123302273 is an equidigital number, since it uses as much as digits as its factorization.

1223123302273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 1223123302273 its reverse (3722033213221), we get a palindrome (4945156515494).

The spelling of 1223123302273 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-three million, three hundred two thousand, two hundred seventy-three".