1123467643 has 2 divisors, whose sum is σ = 1123467644. Its totient is φ = 1123467642.

The previous prime is 1123467641. The next prime is 1123467647. The reversal of 1123467643 is 3467643211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123467643 - 2¹ = 1123467641 is a prime.

Together with 1123467641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1123467641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561733821 + 561733822.

It is an arithmetic number, because the mean of its divisors is an integer number (561733822).

Almost surely, 2^1123467643 is an apocalyptic number.

1123467643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123467643 is an equidigital number, since it uses as much as digits as its factorization.

1123467643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 1123467643 is about 33518.1688491481. The cubic root of 1123467643 is about 1039.5694849633.

The spelling of 1123467643 in words is "one billion, one hundred twenty-three million, four hundred sixty-seven thousand, six hundred forty-three".