1232223997 has 2 divisors, whose sum is σ = 1232223998. Its totient is φ = 1232223996.

The previous prime is 1232223989. The next prime is 1232224031. The reversal of 1232223997 is 7993222321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 635594521 + 596629476 = 25211^2 + 24426^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232223997 - 2³ = 1232223989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232223907) 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, 616111998 + 616111999.

It is an arithmetic number, because the mean of its divisors is an integer number (616111999).

Almost surely, 2^1232223997 is an apocalyptic number.

It is an amenable number.

1232223997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232223997 is an equidigital number, since it uses as much as digits as its factorization.

1232223997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 1232223997 is about 35103.0482579505. The cubic root of 1232223997 is about 1072.0866483968.

The spelling of 1232223997 in words is "one billion, two hundred thirty-two million, two hundred twenty-three thousand, nine hundred ninety-seven".