1223001061 has 2 divisors, whose sum is σ = 1223001062. Its totient is φ = 1223001060.

The previous prime is 1223000981. The next prime is 1223001067. The reversal of 1223001061 is 1601003221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 948270436 + 274730625 = 30794^2 + 16575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223001061 - 2¹¹ = 1222999013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223001067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611500530 + 611500531.

It is an arithmetic number, because the mean of its divisors is an integer number (611500531).

Almost surely, 2^1223001061 is an apocalyptic number.

It is an amenable number.

1223001061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223001061 is an equidigital number, since it uses as much as digits as its factorization.

1223001061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1223001061 is about 34971.4320696193. The cubic root of 1223001061 is about 1069.4051665142.

Adding to 1223001061 its reverse (1601003221), we get a palindrome (2824004282).

The spelling of 1223001061 in words is "one billion, two hundred twenty-three million, one thousand, sixty-one".