1232223007261 has 2 divisors, whose sum is σ = 1232223007262. Its totient is φ = 1232223007260.

The previous prime is 1232223007247. The next prime is 1232223007273. The reversal of 1232223007261 is 1627003222321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1083608131225 + 148614876036 = 1040965^2 + 385506^2 .

It is an emirp because it is prime and its reverse (1627003222321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1232223007261 - 2³⁷ = 1094784053789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232223007241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616111503630 + 616111503631.

It is an arithmetic number, because the mean of its divisors is an integer number (616111503631).

Almost surely, 2^{1232223007261} is an apocalyptic number.

It is an amenable number.

1232223007261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232223007261 is an equidigital number, since it uses as much as digits as its factorization.

1232223007261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 1232223007261 its reverse (1627003222321), we get a palindrome (2859226229582).

The spelling of 1232223007261 in words is "one trillion, two hundred thirty-two billion, two hundred twenty-three million, seven thousand, two hundred sixty-one".