1223523347 has 2 divisors, whose sum is σ = 1223523348. Its totient is φ = 1223523346.

The previous prime is 1223523331. The next prime is 1223523349. The reversal of 1223523347 is 7433253221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1223523347 - 2⁴ = 1223523331 is a prime.

Together with 1223523349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1223523349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611761673 + 611761674.

It is an arithmetic number, because the mean of its divisors is an integer number (611761674).

Almost surely, 2^1223523347 is an apocalyptic number.

1223523347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223523347 is an equidigital number, since it uses as much as digits as its factorization.

1223523347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 32.

The square root of 1223523347 is about 34978.8985961537. The cubic root of 1223523347 is about 1069.5573756647.

Adding to 1223523347 its reverse (7433253221), we get a palindrome (8656776568).

The spelling of 1223523347 in words is "one billion, two hundred twenty-three million, five hundred twenty-three thousand, three hundred forty-seven".